Which relation is a function pls help will give brainliest

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)

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract