Barbara has a rectangle shaped mouse pad. the longest side is 8 inches and the shortest side is 3 inches. what is the perimeter and area of the mouse pad

P= 2w+2l
=2(3)+ 2(8)
=6+16
=22 inches
A= l x w
=8x3
=24 in²

What you want for the area is on side (8) times the other side (3).
Meaning:
8*3=24

What you want to for the perimeter is all of the sides of the rectangle added up.

Meaning,
8+8+3+3=22 the perimeter is 22 

Therefore the Area=24 and the Perimeter=22

20 percentage, you can also do it on a calculator.