John drove 15 miles on 1/2 gallon gas. How many miles did John drive per gallon of gas? *

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

What number is 7 units left of -15?