If , what is 2x in the terms of a?

During a storm, the atmospheric pressure in a certain location fell at a constant rate  of 3.4 millibars (mb) per hour over a 24-hour time period. Which of the  following is closest to the total drop in atmospheric pressure, in millimeters of mercury (mm Hg), over the course of 5 hours during the 24-hour time period? (Note: 1,013 mb = 760 mm Hg)

Ryan has 1,500 yards of yarn. He wants to knit at least 2 scarves and at least 3 hats. Each scarf requires 300 yards of yarn, and each hat requires 120 yards of yarn. If s represents the number of scarves and h represents the number of hats, which of the following systems of inequalities represents this situation?

A collection of more than one inequality in one or more variables is known as a system of inequalities. Systems of inequalities are helpful when a problem's potential solutions are subject to several constraints, and a variety of potential solutions are required.
¶An infinite number of ordered pair solutions for inequality in the set, each specified by a region in a rectangular coordinate plane. When two inequalities are considered, the collection of simultaneously ordered pair solutions is defined by the intersection of these sets.
¶Systems of inequalities can be solved slightly differently than systems of linear equations because the substitution and elimination methods are not applied. Only the limitations of the inequality signs, ≤, and ≥, are responsible for this.

Which of the following is closest to the equation of the line of best fit shown?

Nutritional Information for 1-Ounce Servings of Seeds and Nuts

Seed or nut	Calories	Total fat (grams)	Protein (grams)
Pecan	198	20.2	3.0
Pistachio	80	6.5	3.0
Pumpkin	159	13.9	8.5
Sunflower	166	14.6	5.9
Walnut	185	18.5	4.3

Lionel purchases 1-pound bags of each of the five seeds and nuts shown in the  table. Of the following, which best approximates the average (arithmetic mean)  number of calories per bag? 
(1 pound = 16 ounces)

Nutritional Information for 1-Ounce Servings of Seeds and Nuts

Seed or nut	Calories	Total fat (grams)	Protein (grams)
Pecan	198	20.2	3.0
Pistachio	80	6.5	3.0
Pumpkin	159	13.9	8.5
Sunflower	166	14.6	5.9
Walnut	185	18.5	4.3

How many more grams of protein are in one pound of pumpkin seeds than are in  one pound of pistachios? (1 pound = 16 ounces)

Which of the following values of x is a solution to the equation above?

x	1	2	3	4	5
y

Which of the following equations relates y to x for the values in the table above?

The growth rate of the sunflower from day 14 to day 35 is nearly constant. On this  interval, which of the following equations best models the height h, in centimeters,  of the sunflower t days after it begins to grow?

Between 1497 and 1500, Amerigo Vespucci embarked on two voyages to the New  World. According to Vespucci’s letters, the first voyage lasted 43 days longer than  the second voyage, and the two voyages combined lasted a total of 1,003 days. How  many days did the second voyage last?

Which expression is equivalent to (2x² − 4) − (−3x² + 2x − 7) ?

h(t)=-16t² + 48t +72
If air resistance is ignored, the function h defined above models the height above ground, in feet, of a toy rocket t seconds after it is launched from the roof of building. Based on the model, what is the height above ground, in feet, of the toy rocket 1 second after launch?

A pizza parlor sells pizza slices for $3 each and calzones for $4 each. A group of friends spent $51 on pizza slices and calzones at the parlor. If they bought 6 calzones, how many pizza slices did they buy?

The dimensions of a right rectangular prism are 4 inches by 5 inches by 6 inches. What is the surface area, in square inches, of the prism?

g(x) = 2^x - 2
The function g is defined by the equation above. Which of the following points in the xy-plane is an x-intercept of the graph of the equation y = g(x)?

The table above gives selected values of a polynomial function p. Based on the values in the table, which of the following must be a factor of p?