The jets are driving 30 miles per gallon of gas. they are traveling 7 hours at 55 miles per hour. how much gas do they need

First you need to find the total amount of miles they will be flying. This can be found by multiplying the rate or 55 by the time or 7. This would be 385 miles. Next you would divide by the miles per gallon or 30 to get the total number gallons needed. This would be 12.833333...
or 13 gallons if rounded to the nearest whole number.