Answer:C
Explanation:
The best deal can be calculated by dividing the cost of the nail by the total amount of nails present in the pack.
A = $6.50/75 = $0.076
B = $15.50/200 = $0.0775
C = $36.00/500 = $0.072
D = $72.00/1000 = $0.078
From the above, the best deal is C (500 nails for $36.00) and the worst deal is D (1000 nails for $72.00).