Jessica and Nancy are members of different video game libraries. Jessica pays a membership fee of $40, and she pays $5 for every video game she rents. The following function shows the total amount of money, y, in dollars, that Nancy pays for renting x number of video games: y = 4x + 30.
How many more dollars does Jessica pay for a membership fee than Nancy?
A. $1
B. $4
C. $10
D. $36