I NEED HALP PLEASE ILL GIVE YOU THE EXTRA POINTS I TRIED MY BEST BUT PLEASE HELP

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

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.

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.