For the winter break, Jennifer is looking for temporary jobs. She finds two interesting companies and they offer overtime opportunities. Company A Company B . # of hours (regular) 6 5 # of hours (overtime) 4 2 Hourly wage (regular) $17 $16 Hourly wage (overtime) $21 $18 Company A does not hire someone who cannot work 6 hours of regular time. Company B does not hire someone who cannot work 5 hours of regular time. Company A does not allow anyone who works less than 4 hours of overtime. Company B does not allow anyone who works less than 2 hours of overtime. Overtime positions are only for those who take regular time positions. a) Jennifer wants to work up to 8 hours per day. Formulate an Integer Programming model that maximizes Jennifer's income. b) Solve the model using Excel Solver. c) Jennifer wants to work up to 10 hours per day. Formulate an Integer Programming model that maximizes Jennifer's income. d) Solve the model using Excel Solver.