Not sure what this for but ye

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Consider the graph of the exponential function y=3(2)×

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.