Question: Maintenance costs for an apartment house generally increase as the building gets older. From past records a managerial service determines that the rate of increase in maintenance costs in dollars per year for a particular apartment complex is given approximately by. M' (x)= f (x)= 9 x ^2 + 5000 where x is the age of the apartment complex in years and M(x) is the total accumulated cost of maintenance for x years. Write a definite integral that will give the total maintenance costs from the end of the second year to the end of the seventh year after the apartment complex was built and evaluate it.