Answer:
6x-3
Step-by-step explanation:
There is a mistake 9,12,13 is not a right triangle. but 9,12,15 is. IF you use this triangle instead, then the area of the 13,14,15 triangle is the sum of the area of the other two triangles.
Example: Set up proportions.
3/4 cups → 1 batch
x cups → 2 batches
x = 2(3/4) = 6/4 = 1 1/2 cups
3/4 cups → 1 batch
y cups → 9 batches
y = 9(3/4) = 6 3/4 cups
<span>6(-3m)^4
= 6(-3)^4 m^4
= 6(81) m^4
= 486 m^4
on your options answer is </span><span>C.6(-3)^4m^4</span>