answer
a 17× + 5× + 16 + 7
b 22× + 23
Explanation:
the perimeter of a shape is calculated by adding up all the the sides.
part a asks you to use all four lengths so just place them side by side with the addition sign.
in part b you are asked to simplify it so you have to add the like terms. 17× and 15x add up to 22 and 16 and 7 add up to 23.this is the simplest we can go since 22x and 23 are not like terms.
hope this helps :)