I been trying to solve question 41 for over an hour can some one show me how to solve it the answer should be 4 months

5.1 Simple Interest and Discount 229 1. Student Loan Danielle borrowed $7500 from her grandfather with simple interest of 7%. She eventually repaid $7675 (principal and interest). What was the time period of the loan? 2. Auto Loan Kiara received a $10,000 loan from her aunt to buy a car. Her aunt charged her 2.5% interest. How long was the term of the loan if the interest accrued was $125 ? Construction Payment John Sun Yee will need $6000 to pay for remodeling work on his house. A contractor agrees to do the work in 10 months. What is the present value of $6000 at 3.6% simple interest to accumulate the $6000 in 10 months? Tuition Payment Mariana will need to pay a tuition bill of $7500 for her daughter in 10 months. What dollar amount can she deposit today at 1.25% simple interest to have enough to pay the tuition bill? Computing Hardware Payment An accounting firm has ordered 50 new computers at a cost of $1704 each. The machines will not be delivered for 7 months. What amount could the firm deposit today in an account paying 3.42% simple interest to have enough to pay for the machines in 7 months? Car Dealership A car dealership has ordered 12 new vehicles from the auto manufacturer. The total amount of the purchase is $420,000. The vehicles will be delivered in three months. What imount could the dealership deposit today in an account paying 1% simple interest to have enough money to pay for the vehiles in three months? reasury Bill A six-month $4000 T-bill sold for $3930. What as the discount rate? reasury Bill A one-year $9600 T-bill sold for $9403. What as the discount rate? Casury Bill A three-month $7600 T-bill carries a discount $80.75. What is the discount rate for this T-bill