Frodo ran 2 4/5 miles in 7/12 of an hour. how many miles can frodo run in one hour

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

What is (28 + 7 + 6 + 3) x 1/2 show your work

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?