3 Work: Mia sells used MP3 players. The average cost to package MP3 players is given by the
equation, c(x) = 2x2 – 40x + 2200, where x is the number of MP3 players she packages
in a week. How many players must she package to minimize her average cost?

Ummm ok. for informing us

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

Idon’t feel like doing the math but you need to do 2.24 divided by 7

Could you make it more clear?