Joyce borrows \$5000 to buy a used car. The bank charges a 9.8% per annum flat rate of interest over 30 months. How much is each equal monthly repayment?

David borrows \$4800 to buy home furniture. The bank charges a 5% per annum simple interest rate over 5 years. How much is each equal monthly repayment?

Amy borrows \$7200 for an overseas trip at 6.4% simple interest over 15 months. If repayment is made in equal monthly instalments, how much is each instalment?

Find the interest rate per annum, correcting to 2 decimal places, that would enable an investment of \($5000\) to grow to \($7000\) over 3 years if interest is compounded quarterly.

Calculate the number of interest bearing periods it will take \($3500\) to \($4900\) at a rate of 6% per annum, with interest compounded quarterly.

Find the principal that will grow to \($5000\) in 4 years, if interest is compounded quarterly at 8% per annum, correcting to the nearest cent.

A desk was purchased for \($1600\) and depreciated at 3% each quarter.   Find its value after ten years,   correcting to the nearest cent.

A computer was purchased for \($3500\) and depreciated at 4% each quarter.   Find its value after five years,   correcting to the nearest cent.

A washing machine was purchased for \($5600\) and depreciated at 2% each month.   Find its value after six years,   correcting to the nearest cent.

Ben earns $850 for a standard 40-hour week, time-and-a-half for overtime, and a $35 per week allowance for working on cleaning. Calculate his gross pay for a week in which he works on cleaning, and does 4 hours of overtime.