Q A much is the interest? 89. BUS What is the interest on a business loan for $6,500 at 9.75% interest per annum (year) paid in 7 months? 90. BUS A salesperson earns a commission of 15% of the total monthly sales. If the salesperson earns $2,145, how much were the total sales? 91. BUS A salesclerk in a store is paid a salary plus 3% commission. If the salesclerk earns $10.65 commission for a weekend, how much were the sales? Section 3-3 9204