Answer:
D. $9/1 lb
Step-by-step explanation:
let's first break down what unit price means
unit price is the amount of cost per one unit.
so if we check the graph here, we need to look at the 1 where weight is depicted. 1 is directly horizontal to $9 so we know our answer varies from c or d.
finally, we can deduce the answer is d because we always divide our cost by the quantity, so it is 9$/1lb
