Chelsea wants to buy a new iPhone that’s cost $324 . She has already saved $56 . If she can save $20 a week , how many weeks will it take for her to be able to purchase the iPhone ?

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?