PHOTOS A photo-book company offers two options. A 12-page hardbound book costs $30 and $0.75 for each extra page. A 12-page soft-back book costs $20 and $1.50 for each extra page. Let x represent the number of extra pages and y represent the total cost. Which system of equations describes the total cost of each option?

Multiple choice question.

A)
y=0.75x and y=1.50x

B)
y=0.75x+30 and y=1.50x+20

C)
y=1.50x+30 and y=0.75x+20

D)
y=30x+0.75 and y=20x+1.50