Mr. Chambliss is planning to build a shed with a rectangular floor. In his original

plan, the length of the floor was 7 feet and the area of the floor was 35 square

feet. In his new plan, he wants to extend the length by 3 more feet. If the total

area of the shed will be 70 square feet, by how many feet will he have to

extend the width?

(1 point)

A1 foot

B2 feet

C3 feet

D4 feet