Answer whatever one you want! (although all would be nice) in return a !

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.

simple 80 pieces in 1 sercing so 80*47=3760+20=3780