Final answer:
To make 8 sandwiches, you would need 16 tablespoons of peanut butter and 24 teaspoons of jelly.
Step-by-step explanation:
To make 1 sandwich, you need 2 tablespoons of peanut butter and 3 teaspoons of jelly. To find out how much peanut butter and jelly is needed to make 8 sandwiches, you can multiply the amount needed for 1 sandwich by 8.
Peanut butter: 2 tablespoons x 8 sandwiches = 16 tablespoons
Jelly: 3 teaspoons x 8 sandwiches = 24 teaspoons