a. The number of students present in Ms. Taylor's class decreased from 25 to 21. Determine the percent of decrease. 16% b. What's 20% of $6,750.90? 1350.18 c. Jake bought a value meal from his local fast food store. If the value meal is $5.99 and the NYC sales tax is 8.875%, then how much will Jake pay for the value meal? 6.5216125 d. The balance in a CD account increased by 15% to $4,362.25 over a period of ten years. How much was originally in the account? 3793.26087