Question

Write an expression to represent the perimeter of 12a, 6a+8, 10a-4, 6a+8

Answer 1

34a + 12

Explanation:

12a + 6a + 8 + 10a - 4 + 6a + 8

combine like terms

12a + 6a + 10a + 6a

and 8 + 8 - 4

34a + 12