To find out how much Barry spent and how much change he received from his three $5 bills, we can follow these steps:
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Calculate the cost of the light rope: \[ \text{Cost of light rope} = 21.50 , \text{meters} \times 0.46 , \text{per meter} = 9.89 \]
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Calculate the cost of the heavy rope: \[ \text{Cost of heavy rope} = 3 , \text{meters} \times 1.04 , \text{per meter} = 3.12 \]
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Calculate the total cost: \[ \text{Total cost} = \text{Cost of light rope} + \text{Cost of heavy rope} = 9.89 + 3.12 = 13.01 \]
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Calculate the amount Barry paid with three $5 bills: \[ \text{Total amount paid} = 3 \times 5 = 15.00 \]
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Calculate the change received: \[ \text{Change} = \text{Total amount paid} - \text{Total cost} = 15.00 - 13.01 = 1.99 \]
Therefore, Barry got back $1.99.