I need these ASAP

Im doing an open-book assignment and have 13 minutes left. Thank you!!

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

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?