If f(x)=4x−7 what is (a) f−1(5) (b) f−1(y) (hint: what does x have to be to give an answer of 5, of y? ) enter n into a blank if there is no solution.

f−1(5)=

f−1(y)=

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

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