PLEASE HURRY
"Kyle buys books. He pays $4.50 for each hardcover book x. He pays $1.75 for each paperback book y. He pays $32 for 12 books!

Write a system about this.

A. xy = 12
4.50x + 1.75y = 32

B. x + y = 12
4.50x + 1.75y = 32