Hello!
It took hours to repair the car.
First, subtract the cost of car parts from the total amount spent:
490 - 210 = 280
Divide this by cost of labor per hour:
280 ÷ 80 = 3.5
the number of girls on the school's basketball team decreased by 20% this year. if there were 25 girls on the team last year. ho
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For this case we have the following functions:
We must find. By definition of compound functions we have to:
So:
Taking into account that:
Different signs are subtracted and the major sign is placed.
Finally we have to:
Answer: