What operation should I use to solve this problem? Jessica bought 10.50 pounds of potatoes, The potatoes are sold in sacks of 20. If the potatoes cost $1.99 per pound how much money did Jessica spend

Multiply.

To solve this problem, you can use the multiplication operation.

First, you'll need to find out how many sacks of potatoes Jessica bought. Divide the total weight of potatoes (10.50 pounds) by the weight of each sack (20 pounds):

10.50 pounds / 20 pounds = 0.525 sacks (rounded to three decimal places)

Since you can't have a fraction of a sack, this means Jessica bought one sack of potatoes.

Next, you'll need to calculate the cost of one sack of potatoes. Multiply the weight of each sack (20 pounds) by the cost per pound ($1.99):

20 pounds * $1.99/pound = $39.80

Therefore, Jessica spent $39.80 on the sack of potatoes.