Question

What is 8lbx$3.50/lb

Answer 1

The measurements are there to confuse you. This problem is just asking:

"What is 8 * 3.5?"

So let's break this down:
8 * 3 = 24
8 * 0.5 = 4
24 + 4 = 28

Therefore, 8lb * $3.50/lb = $28

Cool? Cool.

Answer 2

 8 lb* ($3.50/ 1 lb)= $28

The final answer is $28~