Answer:
4x+64
Step-by-step explanation:
Perimeter is the sum of all sides so you add all of the expressions together. Then combine like terms, x+x+2x, and 14+14+36. Combine them and you get 4x+64.
it would be 6
15 classrooms
6
4(3)+(2)^2-(5)^2
12+4-10
16-10
