Help me with this two problems pls!

Use each unit rate to find the total.


Andy drove 840 miles in 12 hours. how far could he drive in 3 hours?

Unit rate (speed):

Distance:

Pira drives 825 miles to California.The trip takes him 17 hours. He uses 38 gallons of gas on the trip, which costs him $125

Find his speed

Find his gas mileage

Find the unit price he paid for gas.