ANSWER:
The area is 286 square meters
STEP-BY-STEP EXPLANATION:
We have that the formula to calculate the surface area in a rectangular prism is the following:
[tex]A=2\cdot l\cdot w+2\cdot l\cdot h+2\cdot h\cdot w[/tex]
Where l is the length, w is the width and h is the height
l = 9 m
w = 7 m
h = 5 m
Replacing:
[tex]\begin{gathered} A=2\cdot9\cdot7+2\cdot9\cdot5+2\cdot5\cdot7 \\ A=126+90+70 \\ A=286 \end{gathered}[/tex]
