Answer:
21
Step-by-step explanation:
First, we would find 30% of 30, which would be 9. Then we would subtract 9 from 30 because we are decreasing it by 30%. That means the answer is 30-9, which is 21.
I believe the answer is C ( 1 represents the dollar and .45 represents the mark up )
Answer:
7,000
Step-by-step explanation:
3,500b + 3,500c = a
or
3,000b + 4,000c = a
7,000 = a
idk what i was doing
Answer:
18
Step-by-step explanation:
have a good day :)))))))
Answer: Choice D

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Explanation:
First we replace f(x) with y. This is because both y and f(x) are outputs of a function.
To find the inverse, we swap x and y and solve for y like so

Note: because the range of the original function is
, this means the domain of the inverse is
. The domain and range swap roles because of the swap of x and y.
As the graph shows below, the original and its inverse are symmetrical about the mirror line y = x. One curve is the mirror image of the other over this dashed line.