Answer:
3 or 1
Step-by-step explanation:
Just do what you would do if you multiply double digit numbers expect with an extra digit. then count how many numbers are behind the decimal and when your down put the decimal point as much to the left from how many numbers are originally behind the decimal.
1 case=8 boxes of cookies and we have 160 boxes
160/8=20
we will have 20 cases
If she pays in advance: C = 5 ((89n - 5n) + (35n + 4n))
If she doesn't pay in advance: C = 5 (89n + (35n + 4n))
(Where n = day or night and C = cost [for rental car and hotel])
