0.1 to 0.2 how much is the percent of change

Answer this question only if you know the answer! 30 points and

Which equation matches the graph shown ?

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)