4. Kala earns $25.40 per hour painting houses and usually works 40 hours per week. He is paid bi-weekly. a) How many hours will Kala work in a 2-week period? b) Calculate his total earnings for one pay period. c) Calculate his monthly earnings for a 2-pay month. d) Calculate his monthly earnings for a 3-pay month. 5. Adrienne works as a receptionist at a large hotel. Her regular wage is $11.82/hour. She normally works 42 hours per week. She worked an extra 6-h shift one Sunday and earned time and a half for those 6 h. a) Calculate her gross income for a regular 42-h week. b) Calculate Adrienne's overtime pay rate per hour. c) Calculate her earnings for the extra shift on Sunday. d) Calculate her total earnings for that week. e) Adrienne is paid bi-weekly. Calculate her gross income for the two-week period that includes the Sunday that she worked.