Answer:

Step-by-step explanation:
Given

Required
The equivalent
We have:

Expand

Collect like terms


Hence, the equivalent is:

notice, this will just be a Permutation.

you can always check your calculator also for a [ ₙPᵣ ] button.
Answer:
im not sure if this is right or not but you can try it if you want
Step-by-step explanation:
A. 75.8 square units B. 76.4 square units C. 76.8 square units D. 79.4 square units