At the end of the school day, Mr. Swift's class stacks their chairs. Each chair has a mass of 3 kilograms. Mona can carry 4 stacked chairs at a time. What is the mass of the stacked chairs that Mona can carry?

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?