18. (3 points) Ms. Hillegass and Ms. Lacy are going on a trip. Ms. Hillegass has $100 and, DO
will save $35 each week. Ms. Lacy has $75.00 and will save $40.00 each week. In how
many weeks will Ms. Hillegass have saved the same amount as Ms. Lacy? *You must
show your work to receive credit.