Answer:
C. 
Step-by-step explanation:
We want fg of x, so first we have to multiply f(x) times g(x).



We can cancel out an x from every term.

Let's rewind a little to get this into one of the answer choices.
is our answer.
Answer:
b = 1530
Step-by-step explanation:
1/17 b = 90
(17)1/17b = 90 × 17
b = 1530
Amalia. Phones rule is only true with numbers between 1 and 1,000.
Answer
10.5
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Triangles with the same shape but different size are proportional. Proportional means that their side lengths form equal ratios. To solve for x, set up a proportion.
The ratios we will create will be
where each long and short are corresponding sides from each triangle.
So write:

To solve, cross multiply numerator with denominator.
4(2.25) = 3(x)
9 = 3x
3 =x