Question

A rectangle has an area of 100 ft2. If the rectangle is 5 ft wide, how long is it?
 A. 15 ft
B. 20 ft
C. 45 ft
D. 95 ft

Answer 1

45 ft or could be 95 ft

Answer 2

20 ft because since the area is a product of two sides if you have one side you can divide the area by the side given to find the missing side.