The school's copier can make 30 copies in 12a
minute. How many
copies can it make in 18
minutes?

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

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?