The owner of a video dispensing machine, purple box has determined that the cost for c in dollars of operating the machine is approximately given
C(×) =2^2-24×+750
Where x is the number of videos rented daily. Find the lowest cost to the nearest dollar

How do i do this activity, is appreciated

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

If g^-1(x) is the inverse of g (x) which statement must be true