Question

which is a better pick 15 oz for $1.79 or 12 oz for $1.49

Answer 1

15 oz for 1.79 becuase its the better deal

Answer 2

Figure out the values in $/oz. 

1.79/15 = .119$/oz

1.49/12 = .124$/oz, so this one is more costly.

The 15 oz pick is cheaper.