Ms. Brack wants to hang a bulletin board with

polka dot paper. The bulletin board is 3.5 ft long

and 2.5 feet wide. How much polka dot paper will

she need to cover the board?

He needs 8.75 ft² polka dot paper to cover the board.

Step-by-step explanation:

How much polka dot paper she need to cover the board is the area of the board. The is a rectangle with length 3.5 ft long and width of 2.5 ft wide.

The area of the board (rectangle) = length * width

Area = LW

where

L = 3.5 ft

W = 2.5 ft

Area = 3.5 * 2.5

Area = 8.75 ft²

He needs 8.75 ft² polka dot paper to cover the board.