PLEASE HELPP!!
Rachel is putting money into a savings account. She starts with $300 in the
savings account, and each week she adds $75.
Let S represent the total amount of money in the savings account (in
dollars), and let W represent the number of weeks Rachel has been adding
money.

a) Write an equation relating S to W.

b) Use the equation from part a to find the total amount of money in the
savings account after 16 weeks.