In order to find the cheapest one, we have to find how much each one costs.
A. 8 hotdogs = $4.48
4.48 ÷ 8 = 0.56
1 hotdog = $0.56
B. 10 hotdogs = $5.56
5.56 ÷ 10 = 0.556
1 hotdog = about $0.56
C. 12 hotdogs = $6.12
6.12 ÷ 12 = 0.51
1 hotdog = $0.51
The best one to buy is C. 12 $6.12