The amount she pays altogether after an additional 30% of the price is $71.5
How to find the total cost?
She buys a textbook online for $55.
The shipping and handling are an additional 30% of the price. Therefore, the cost she pays altogether is as follows:
30% of 55 = 30 / 100 × 55 = 1650 / 100 = $16.5
Therefore, the amount she pays altogether = 16.5 + 55 = $71.5
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