Use variation parameters to find a general solution to the differential equation given that the function y1 and y2 are linearly independent solution
ty''-(t+1)y'+y=t^2; y1=e^t, y2=t+1

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.