Does someone know how to do that?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Which expression is not a polynomial?

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.