Answer:

Step-by-step explanation:

Replace y = f(x)

Exchange x and y

Solve for y
Subtracting both sides by 3

Taking square on both sides

Adding 2 to both sides

Substitute y = 

I think it’s 21 not sure because I did 9 more than 4 times which is 9*4 =36 then u subtract 15 less which would be 36-15 which equals 21
$30, because basically, it's -100, +100, -30.
Answer:
63000- 32000
Step-by-step explanation:
its 400 so it rounds down and 500 rounds up