Which transformation will be equivalent to rotating a figure 270 degrees clockwise ?

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?

Measure of angles 31 (x+4) (3x+9) me

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