math

An advertisement states that 8 thermometers cost 12.42 minus a 3% disc. Dr. wants to order a dozen to take advantage of the savings sales tax is 5%. What would the cost be? I divided 8 into 12.42 wich gives you 1.55 per thermometer 1.55 x 12 thermometers = 18.60 18.60+93 cent sales tax = 19.53 19.53-.59 disc = 18.94 Check me Thanks

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