Find out if the function is linear or quadratic. find the quadratic, linear and constant term. f(x)=(x-5)(3x-1)

What is the reflection image of (5,-3) across the line y = -x?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.