Find the unit rate of the following:
(miles per hour)
22.75 miles in 3.5 hours =

How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

This is about circle theorems. someone asap : (