Final answer:
The total cost of the floral arrangement is $60.91.
Step-by-step explanation:
To calculate the total cost of the floral arrangement, we need to add the cost of the arrangement and the tax. First, we calculate the tax amount by multiplying the sales tax rate of 8.775% by the retail cost of $55.99:
Tax = 8.775 / 100 * 55.99 = $4.92
Then, we add the tax amount to the retail cost of the arrangement to find the total cost:
Total Cost = Retail Cost + Tax = $55.99 + $4.92 = $60.91
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