Help pleasee anyone?/
i will give brainlest

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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 me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.