5. Joni signed a 253-day simple interest note for $7700 with a bank that uses exact interest. If the rate is 1034 %, find the maturity value. (2 Marks) 6. Harman plans to invest $4780. Find the interest rate required for the fund to grow to $5138.50 in 15 months. (2 Marks) 7. Jhonty lends $5500 at a rate of 5%2%. Find how long it will take for his investment to earn $205 in interest? (Round to the nearest day). (2 Marks) 8. My bookstore buys notebooks for $39 per box of 50. Find the selling price per notebook if the retailer maintains a markup of 20% on the selling price. Round to the nearest cent. (2 Marks) 9. Bekins Appliances Enterprise pays $435 for a dishwasher. The original selling price was $675, but it was marked down 35%. If operating expenses are 18% of cost, find the operating loss. (2 Marks)