A. C = 17h + 15
b. 83 = 17h + 15
-15 - 15 subtract 15 from both sides
68 = 17h
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17 divide both sides by 17
4=h
They cleaned the house for 4 hours
c. C = 20x
to do this last part, you would put both equations into the calculator under y=, then look at the table to determine when the price is the same. According to the calculator, the price is the same at 5 hours
Let the number of collectible dolls she can buy be x.
x ≤ 45/2.5
x ≤ 18
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Answer:She can buy at most 18 dolls.
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22% I hope it helps you I'm not positive I'm not the best but she was 22 numbers away from getting it right so
Answer:

Step-by-step explanation:
question 3 is already answered by me in your question..or you can see attachment.
It would be 6.66..... repeating