Answer :
Answer: 8 hours
Explanation: you start by subtracting the b value (17) from the total (89) getting 72. Then, since the hourly price is 9 dollars, we can divide the price by how much it is per hour getting (8) hours
Explanation: you start by subtracting the b value (17) from the total (89) getting 72. Then, since the hourly price is 9 dollars, we can divide the price by how much it is per hour getting (8) hours