27
explanation:
3a²
given that a = -3
3(-3)²
3(9)
-81
Step-by-step explanation:
if a=-3 when 3a²
Subtitute a with -3
=3(-3)²
=-9²
=-81
the area of the rectangle is 35units^2.
step-by-step explanation:
graph it and find the distance.
it is a 5*7 rectangle.
therefore the area is 35units^2.