20. Sheila is a life insurance agent. Her company pays her based on the annual premiums of the customers that purchase life insurance policies. In the last month, Sheila's new customers purchased policies worth $35,550 annually. If she receives 10% commission on the first $10,000 of premiums and 20% on the rest, what are her total gross earnings for the month? 21. Tuan is a telemarketer who earns $9.00 per hour plus 3.25% on any sales above $1,000 in any given week. If Tuan works 35 regular hours and sells $5,715, what are his gross earnings for the week? 22. Adolfo packs fruit in cans on a production line. He is paid a minimum wage of $9.10 per hour and earns $0.09 for every can packed. If Adolfo manages to average 160 cans per hour, what are his total gross earnings daily for an eight-hour shift? 23. Charles earns an annual salary of $72, 100 paid biweekly based on a regular workweek of 36.25 hours. His company generously pays all overtime at twice his regular wage. If Charles worked 85.5 hours over the course of two weeks, what are his gross earnings? 24. For Investment Plan A to C, solve for the future value at the end of the term based on the information provided. Investment Plan Principal Interest Rate Term A $7,500 8% compounded quarterly 3 years $53,000 6% compounded monthly 4 years and 3 months $19,000 5.75% compounded semi-annually 6 years and 6 months 25. Find each of the following: a. $10,000 invested at 12% compounded daily for 6 years. b. $10,000 invested at 12% compounded monthly for 6 years. c. $10,000 invested at 12% compounded quarterly for 6 years. d. $10,000 invested at 12% compounded semi-annually for 6 years. e. $10,000 invested at 12% compounded annually for 6 years. ******** End of Assignment 4 ********