Question

Sarah wants to install carpet to cover her rectangular dining room floor, which has a length of 12 feet and a width of 9 feet. The cost to install the carpet is $5 per square foot. Sarah predicts that the total cost to install the carpet will be $500. Which statement BEST explains why Sarah’s prediction is incorrect? PLS HELP TY

A. Sarah rounded the area of the floor to 110 square feet.

B. Sarah rounded the area of the floor to 100 square feet.

C. Sarah rounded the area of the floor to 98 square feet.

D. Sarah rounded the area of the floor to 108 square feet.

Answer 1

B

Explanation:

12 long 9 wide = 12*9 =108 sqft

$5/sqft

so she'll need 108*5 =540

but she rounded to 100 sqft