Ireally need asap i am pretty confused

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

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.

Are the corresponding angles congruent? explain why or why not.