Question

PLEASE SOMEONE HELP, I WILL FAIL IF I DONT GET THIS DONE, IVE GOTTEN NO HELP AND I ONLY HAVE 30 MINS FR REAL

Answer 1

18m³ + 2m² - 1m

Explanation:

For perimeter you add up all the side lengths.

Cubed term:

5m³+5m³+8m³

10m³+8m³

18m³

Squared term:

3m²+3m²+ (-4m²)

6m² - 4m²

2m²

Regular term:

-2m + (-2m) + 3m

-4m + 3m

-m