math
posted by sarah .
a 12.0 gallon gasoline tank holds 66.0 pounds of gasoline. If this gasoline cost $3.50/gallon, what is the cost of 1 gram of gasoline..
I need help with just the set up part.. I don't know where to start.. help please

math 
Steve
you want to find $/g. So, start working with the units:
12.0gal/66lb * 3.50 $/gal * 1lb/454g = $0.0014/g or .14ยข/g
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