Question

A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate.

Answer 1

Here is the solution of the given problem above.
Given: Cost (C) = $30.99
           Tax (r) = 5%
Formula: C = p + rp
So, C = 30.99 + (0.05)(30.99)

C = 30.99 + 1.5495
C = 32.5395
The total cost of the pair of shoes would be $32.5395. Round this off to the nearest tenths and the result is $32.54. Therefore, the correct answer would be option D.