Select proportional or not proportional to correctly classify each pair of ratios.

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

Can someone answer this question? : )

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?