David’s mom wants to calculate how much it will cost to drive from Los Angeles, CA, to San Francisco, CA. Gas costs $4.00 a gallon, and the gas mileage of their car is 38 miles/gallon. What additional information does David’s mom need to do this calculation?
Answer
A
the size of the gas tank
B
the distance between the two cities
C
the number of times that the gas tank will be filled along the way
D
the speed limit on the highway between the two towns