Answer:
i hope u have a good day
Step-by-step explanation:
Girl, everyone here is cheating so don’t worry lol
1. 18x+16 in
To find the perimeter of a rectangle you have to add all the side together. Two sides are 5x+2 in and two sides are 4x+6 in. 5x+2+5x+2+4x+6+4x+6=18x+16
Sorry I don't know how to do the others.