RUSH RUSH Please answer quickly please

1. You wish to take out a 5.5 -year loan from a bank that charges 6.03% compounded semiannually. You know that you can afford to pay back your loan with semiannual payments of $400 each. What is the maximum amount that you can borrow? 2. Gordon Freeman wants to have $32,000 in 5 years in order to purchase a new car. (a) How much should he deposit today in an account earning 6.4\%, compounded quarterly, to have the required amount in 5 years? (b) How much interest will be carned? (c) If he can only deposit $16,000 now, how short of $32,000 will he be? (d) Suppose he instead decides to make a deposit at the end of each quarter into an account earning, 6.4%, compounded quarterly. How much should he deposit each quarter to have $32,000 in 5 years? 3. The Fisher family bought a house for $191,000. They paid $40,000 down and took out a 15 year mortgage for the remaining balance at 5.25%, compounded monthly. (a) What is their monthly payment? (b) How much interest did they pay over the entire loan? 4. If $4,000 is deposited at the end of each quarter for 7 years into a bank account that carns 5%, compounded quarterly, how much money is in the account at the end of 7 years? 5. Stacey has a $8,000 balance on her credit card that has an interest rate of 21%, compounded monthly. (a) If she decides to pay it off over 5 years with equal monthly payments, how much should each payment be? (b) How much interest will Stacey pay to the credit card company? (c) If instead she wants to completely pay off her debt after 3 years (i.e. 2 years early), what lump sum payment must she make? 2. Maria has a total of $12,000 invested in two funds. The first fund pays simple interest at 6% per year and the other pays simple interest at 7% per year. If the funds earn a combined $817 in interest in one year, how much does she have invested in each fund? 3. A total of 1000 passengers rode a bus during the morning rush hour. A child's fare is $0.25 and the adult fare is $0.75. The total revenue from the fares during the morning rush hour was $650. How many children and how many adults rode the bus? d like to know how these questions are solved, what formula was used, please help