Alocal internet carrier offers two mobile packages. if you pay $20 for a monthly access, then pay $2 for each hour you get access to the internet; if you pay $35 for a monthly access, then pay $1 for each hour you get access to the internet. which of the following choices below is a system of equations representing this situation?

a. y=20+2x and y=35+x
b. y=20-2x and y=35+x
c. y=20+2x and y=35-x
d. y=20-2x and y=35-x