What Constant of proportionality of y=2x+3

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

Find all the angles that satisfy the equation cos(θ)=32