4. Suppose you have $75.00 to spend on gas for
 your whole trip. You know that gas costs $2.70 per
 gallon.
 (4a) How many gallons of gas can you buy with the
 money you have?
 Round your answer to the nearest tenth of a gallon
 You can buy gallons of gas.
 (4b) If you know that you can drive 210 miles with
 that much gas, how many miles per gallon does
 your bus get?
 Round your answer to the nearest tenth of a mile.
 The bus gets
 miles per gallon
 .