Answer: b
Step-by-step explanation: I did this on a test before
8.05 x 10^8 - 9.16 x 10^6
= 10^6 (805 - 9.16)
= 795.84 x 10^6
= 7.9584 x 10^8
The formula for finding the area of a square is:

The formula for finding the area of a triangle is:

So for the square the area would be:

The area for the triangle would be: