Final answer:
You need to buy 8 canisters of breadcrumbs.
Step-by-step explanation:
To determine how many canisters of breadcrumbs you need to buy for making 8 meatloafs, you need to know how much breadcrumbs are needed for each meatloaf. Let's assume that each meatloaf requires 1 canister of breadcrumbs. Since you are making 8 meatloafs, you would need 8 canisters of breadcrumbs. So, you need to buy 8 canisters of breadcrumbs.