Which of the following complex numbers is equal to is
( 5 + 12i ) – ( 9i² – 6i ), for i =  ?

For the linear function h, the table above shows several values of x and their corresponding values of h(x). Which of the following defines h ?

x = y – 3
+ 2y = 6
Which ordered pair (x, y) satisfies the system of
equations shown above?

Tony spends $ 80 per month on public transportation. A 10- ride pass costs $ 12.50, and a single-ride pass costs $ 1.50. If g represents the number of 10-ride passes Tony buys in a month and t represents the number of single- ride passes Tony buys in a month, which of the following equations best represents the relationship between g and t?

Which of the following is equivalent to 3 (x + 5) − 6  ?

If 3 (3x + 5) = 2x - 8 , what is the value of x ?

x + = 75 y
The equation above relates the number of minutes, x, Maria spends running each day and the number of minutes, y, she spends biking each day. In the equation, what does the number 75 represent?

ax = 5
In the equation above, a is a constant. For which of the following values of a will the equation have no solution?

Determine the linear function from the data in the table.

A linear equation when plotted on graph gives a line. For such questions, we should know about the slope intercept form.

Write a linear function for the data given below.

A linear equation when plotted on graph gives a line. For such questions, we should know about the slope intercept form.

Given function . Find the value of x when 

For such questions, we should know about the concept of functions.

Write the equation of a line perpendicular to y = 3x - 8 and that passes through the point (-3, -9)

For such questions, we should know different formulas required to find lines. We should also know the concept of slope of different lines.

In the xy-plane, line k with equation y = mx + b, where m and b are constants, passes through the point (-3,1). If line k is perpendicular to the line with equation y = -2x + 3 , what is the value of b?

The line graph shows the wind speed recorded every 2 hours in a town, where x is the number of hours after midnight and  is the wind speed, in miles per hour (mph). What is the greatest average change in wind speed, in miles per hour per hour, between two readings shown in the graph?

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

An element is a nonmetal if it is classified as a halogen, noble gas, or other nonmetal. The ratio of all nonmetals to all elements is 10 to k. What is the value of k ?

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

The percentage of the 10 classifications that have 11 or more elements is . What is the value of p ?