I really need help, Please help. The rate of expenditure (in dollars per year) for maintenance of a certain machine is given by m(x)=e^0.15x, where x is the time measured in years. The machine produces a rate of savings (in dollars per year) given by S(x)=120.3x-e^0.15x. For how many years should
the machine be used to maximize net savings? What is the net savings over this time period?
Please show all integration by hand, though you can use fnInt to check your answer.
