A magazine costs $3 each. Jewel bought 10 magazines to be sold at $3.50 each. How much will be Jewel gain from selling these?
Jewel's gain for each magazine is $3.50 - $3 = $<T>subtract(3.5, 3)=0.5.
Thus, her total gain will be $0.50 x 10 = $<T>multiply(0.5, 10)=5.0
