When no more than 110 units are produced, the cost of producing y units is given by C(x). C(x)=0.2x^3-24x^2+1522x+31272
How many units should be produced in order to have the lowest possible average cost?

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

I'm stumped by this question. someone with my math homework