You are planning a trip that will take you 821 miles from home. your car gets 24 miles per gallon, and the average price of gas is $3.74 per gallon. how much should you budget for gas

The

the total distance of the trip is 821 miles from home,
for this the car gets 24 miles per gallon
the average price of gas is $3.74 per gallon
the price can be calculated as:
for the trip, 
24 miles1 gallon
821 miles x= 821/24=34.20 gallons

1 gallon $3.74
34.20 gallonsx=?

to find this value

34.20 gallons x $3.74 = $127.93.