The Fiore's wish to create a sinking fund to save for their children's education. a.) They estimate that they will need to save about $150,000 in 18 years. If the account returns 7.5%, how much are the monthly installments? b.) How much will The Fiore's deposit in the account? c.) Once in college, what are the monthly installments of the $150,000 pay out in 4 years? d.) What is the total amount the twins will receive from the $150,000 pay out during the 4 years they're in college