Question
A book rental shop rented out books and the rate of rental charges are shown in the table.

Number of days Rates
After the first 8 days 20 cents a day
After 8 days 30 cents a day

Luis rented 4 books and was charged $13.60. How many days did he rent the books for?
2 m

Click button first when a symbol is required. X

A book rental shop rented out books and the rate of rental charges are shown in the table.

Number of days Rates
After the first 8 days 20 cents a day
After 8 days 30 cents a day

Luis rented 4 books and was charged $13.60. How many days did he rent the books for?