



 
Hi Dawn. You have two costs per unit volume: You need to find the conversion factor to go from cc's to ounces, so we can compare these fractions using a common unit denominator. When I type "1 cc in ounces" into Google, it replies "1 cc = 0.0338140227 US fluid ounces". So the conversion factor is that decimal number. So (A) becomes: $13.50 / ( 5.5 cc x 0.033814 oz/cc) (B) becomes The bottle is WAY cheaper than the syringe, assuming you don't need the syringe itself! Hope this helps, PS: Google is getting smarter all the time. You could even type in  


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