(3x+2x^2--7x+2x^2) i don’t understand

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?

Add the fractions and simplify 1/2+ 1/3

The total number of dental clinics total for the last 12 months was recorded