Answer:
The purchase price of the futon is $23.2275.
Explanation:
The sales price is how much you sold the product for, including the taxes, which is 5%.
The purchase price is how much you bought the futon for, that is, without the taxes.
The tax rate is 5% and you sell the futon for $24.45. So you paid for the futon 95% of 24.45.
So
24.45 - 1
x - 0.95

The purchase price of the futon is $23.2275.