Of the four expressions presented here, which two are equivalent? Expression I: 19n Expression II: 4n + 9 + n + 5n Expression III: 10n + 9 Expression IV: 9n + 9 I and II II and III I and III II and IV

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3