Rosanne earned $5 for 1/2 of an hour of babysitting. At this rate, how much would Rosanne make in 1 hour?
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well we know that we have 80mL and we also know that those 80mL will represent the "solute" or the 40% of the Tennessee whiskey total which we can say is 100%, so if 80 is the 40%, how much will it be for the 100% in mL?