I rly need help this is a diagnostic test and if I fail it I will be in sooo soo much trouble? Plz help

Write a recursive sequence that represents the sequence defined by the following explicit formula:

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

The function show two sisters' savings account and the rate at which they plan to deposit money