What value of t is the solution of the equation above?

If  for positive integers a and b, what is one possible value of b?

If , what is the value of x?

A bricklayer uses the formula n = 7 l h to estimate the number of bricks, n, needed  to build a wall that is l feet long and h feet high. Which of the following correctly  expresses l in terms of n and h

If  and y = 18, what is the value of 2x − 3 ?

4x² − 9 = (px + t)(px − t)
In the equation above, p and t are constants. Which of the following could be the  value of p ?

What is the sum of the complex numbers 2 + 3i and 4 + 8i, where i = 

A gardener buys two kinds of fertilizer. Fertilizer A contains 60% filler materials by weight and Fertilizer B contains 40% filler  materials by weight. Together, the fertilizers bought by the  gardener contain a total of 240 pounds of filler materials. Which  equation models this relationship, where x is the number of  pounds of Fertilizer A and y is the number of pounds of Fertilizer  B?

A laundry service is buying detergent and fabric softener from its supplier. The  supplier will deliver no more than 300 pounds in a shipment. Each container of  detergent weighs 7.35 pounds, and each container of fabric softener weighs 6.2  pounds. The service wants to buy at least twice as many containers of detergent  as containers of fabric softener. Let d represent the number of containers of  detergent, and let s represent the number of containers of fabric softener, where  d and s are nonnegative integers. Which of the following systems of inequalities  best represents this situation?

2x² − 4x = t
In the equation above, t is a constant. If the equation has no real solutions, which of  the following could be the value of t ?

Which of the following is equivalent to ?

The vertex of the parabola in the xy-plane above is (0, c). Which of the following is true about the
parabola with the equation y = −a(x − b)² + c ?

Jaime is preparing for a bicycle race. His goal is to bicycle an average of at least 280  miles per week for 4 weeks. He bicycled 240 miles the first week, 310 miles the  second week, and 320 miles the third week. Which inequality can be used to 
represent the number of miles, x, Jaime could bicycle on the 4th week to meet his  goal?

x	w(x)	t(x)
1	-1	-3
2	3	-1
3	4	1
4	3	3
5	-1	5

The table above shows some values of the functions w and t. For which value of x is  w(x) + t(x) = x ?

6x − 9y > 12
Which of the following inequalities is equivalent to the inequality above?

Equivalent Inequalities
Equivalent inequalities are defined as inequalities that transmit the same information.
There are several methods for creating equal inequalities.
An inequity is equal to its mirror image, to start with. Let's take a look at what that appears to be:
x > 4
4 < x
Keep in mind that one inequality is effectively the reverse of the other. The inequality symbol's pointed portion always points in the direction of 4! In this situation, the disparities are equal. You must, however, pay VERY close attention to the inequality sign's orientation.
Example 1: The pointed portion of the inequality sign in the first inequality points to 4, whereas the pointy portion in the second inequality points to x, making these two inequality NOT equal:
x > 4
4 < x

A motor powers a model car so that after starting from rest, the car travels s inches in t seconds, where s = 16t . Which of the following gives the average speed of  the car, in inches per second, over the first t seconds after it starts?