What is 500 expressed as a fraction of 2000

For the function, f(x) = -5x 2, find f(-4).

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Find the distance between (7,-6) and (-3,-9)