Tajwar Solutions Enterprise purchased paper products list priced at RM$1,296$ less series discounts of $\frac{20}{10}\frac{?}{5},$ with terms of $\frac{3}{10}-50$ extra. If the retailer paid the invoice within $60$ days, find the amount paid.

$(3$ Marks$)$

Taariq's Electrical Sdn$.$ Bhd$.,$ a retailer, paid RM$2,200$ for the latest model front load washing machine. The original selling price was RM$2,681,$ but it was marked down $30\%.$ If operating expenses are $20\%$ of the cost, find the operating loss.

$(3$ Marks$)$

Avinity Analytics Enterprise borrowed RM$113,355$ from a financial institution. The simple interest loan was repaid in $12$ months at $9\%.$ Find the amount of the repayment.

$(3$ Marks$)$

Rafiq invest in an account for RM$52,750$ at a rate of $8\mathrm{.}5\%.$ Find how long it will take for his investment to earn RM$678\mathrm{.}90$ in interest.

$(3$ Marks$)$

Raheem Rahmat needs RM$28,500$ to computerize his inventory. Find the face value of a simple interest note that will provide the RM$28,500$ in proceeds if he plans to repay the note in $150$ days and the bank charges an $11\%$ discount rate.

$(3$ Marks$)$

Microdium Distribution Sdn$.$ Bhd$.$ deposited RM$39,800$ in a savings account paying $3\frac{1}{2}\%$ compounded daily on September $1$ and deposited an additional RM$9,120$ in the account on September $20.$ Find the balance on November $30.$

$(3$ Marks$)$

Ramzi Razis the owner of Petro Vynzio Enterprise needs to replace two pumps at his gas station in $3$ years at an estimated cost of RM$24,000.$ What lump sum deposited today at $5\%$ compounded annually must he invest to have the needed funds?

$(3$ Marks$)$

Every $6$ months, Refah Rafaz puts RM$680$ into an account paying $10\%$ compounded semiannually. Find the account balance after $8$ years.

$(3$ Marks$)$

An insurance settlement includes an RM$1,680$ monthly payment for $4$ years. Find the amount that must be set aside today in an account earning $12\%$ per year compounded monthly to satisfy this financial obligation.

$(3$ Marks$)$

Richard owes his mother RM$75,000$ for the purchase of machinery for his business. Find the required quarterly payment into a sinking fund if Richard pays off the loan in $4$ years and the interest rate is $5\%$ per year compounded quarterly.

$(3$ Marks$)$