Suppose that you can only work a total of 42 hours or less each week at your two jobs, and that your job as a cashier pays $8 per hour and your sales job pays $11 per hour. Write a system of inequalities that gives the numbers of hours you can work at each job if you want to earn at least $366 each week.

Which is NOT a valid solution for the hours you can work for a given week to earn at least $366?
A) work cashier job 23 hours and sales job 17 hours
B) work cashier job 20 hours and sales job 20 hours
C) work cashier job 18 hours and sales job 21 hours
D) work cashier job 18 hours and sales job 20 hours