Aaron initially invests $100 and then an additional $20 per month into a bank earning 2.7% p.a. interest compounded monthly. His investment's value after 6 months is closest to:

Lachlan finally decides he wants to be a barber. He purchases a barber chair for $1500. He finds out from the ATO that it has an effective life of 15 years. If he uses flat rate depreciation what would be the recurrence relation to model the value, V_n, of the chair at the end of n years?

Lachlan finally decides he wants to be a barber. He purchases a barber chair for $1500. He finds out from the ATO that it has an effective life of 15 years. If he uses reducing balance depreciation model with a scrap value at 15 years of $100, what would be the annual depreciation percentage?

Lachlan finally decides he wants to be a barber. He purchases a barber chair for $1500. He uses reducing balance depreciation at a rate of 16.5% p.a. to depreciate the chair. What is the value of the chair after 5 years?

Connor works a part time job earning $200 per week. He decides to put a quarter of his weekly earnings into a bank account earning 4%p.a. compounded monthly. Connor initially invests $1000. What is the value of Connor's investment after 2 years?

Alex loans $5400 to buy herself a car. The interest rate on the loan is 4.5%p.a. compounded monthly. What monthly payment does Alex need to make to pay off her loan in 3 years?

Malik loans $1400 to buy himself a computer. The interest rate on the loan is 6.5%p.a. compounded monthly. Malik makes monthly payments of $42.91 per month over three years. What will his final payment be so that his final balance is zero?

Hannah is seeking early retirement. She starts investing $25 per week on her 17th birthday into a high return investment earning 7% p.a. compounded quarterly. Hannah will retire on the birthday after her investment reaches $1,000,000. At what age will Hannah retire?

Robbyn starts investing $25 per week on her 17th birthday into a high return investment earning 7% p.a. compounded weekly. After 3 years Robbyn increases her payments to $75 per week, the interest rate remains at 7% p.a. Robbyn will retire on the birthday after her investment reaches $1,000,000. At what age will Robbyn retire?

Tony intends to live forever. His early life investments have seen him accrue $1560000. In order to earn $990 per week from a perpetuity, what interest rate does the perpetuity need to offer? Assume the perpetuity compounds and pays weekly.

Krystal loans $14000 for a car. She repays it over 4 years with regular monthly payments. The interest rate is 4.75% p.a. compounded monthly. What is the total amount Krystal pays for the car loan?