Final answer:
The formula to determine how many candy bars the students need to sell to reach their goal is Money raised / Price of a candy bar.
Step-by-step explanation:
The formula to determine how many candy bars the students need to sell to reach their goal is A) Money raised / Price of a candy bar. To find the number of candy bars, divide the total amount of money raised by the price of a candy bar. For example, if the goal amount is $1000 and the price of a candy bar is $2, then the number of candy bars needed to be sold would be 500 (1000 / 2 = 500).