Answer: $3.01
Explanation:
1. You first have to find out how much she spent for ALL the jellybeans, you find this by multiplying the pounds by the cost per pound.
(7/2)*(2.58)
Kelsey spent $9.03 for the 3 1/2 pound bag of jellybeans
2. You now have to find out how much she spent for 1/3 if the bag. You do this by multiplying the total cost by 1/3.
(1/3)(9.03)
3.01
ANSWER: Kelsey spent $3.01 on the amount of jellybeans she gave away.