Question

The table shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1PM and plans to return on before 4PM

Answer 1

If she rent the sound system from 1pm to 4pm she will pay

`24+48+60=132`

that is, Isabel will play $132 if she returns the system between 3 and 4 pm.

Now, If she is 30 minuts late, she will pay an additional $72 because she will have ths sound system for 4 hours