D. not shown , ...............
To get your answer:
9 times 5 times two= 90
9 times 7.5 times two= 135
5 times 7.5 times two= 75
then add all of them together and you will get the surface area
90+135+75=300
you should have an answer of 300 feet²
The answer is D
i plugged in all the equations and the equation for D is the one that works
Answer:

Step-by-step explanation:
<u>Formula:</u> 




Answer:
O -1+ 3/
Step-by-step explanation:
brainest plz