Answer:
5% = sales tax rate
Explanation:
tax = original price * sales tax rate
We know the tax and the original price
1.29 = 25.79 * sales tax rate
Divide each side by 25.79
1.29/25.79 = 25.79/25.79 * sales tax rate
.0500 = sales tax rate
Change this to percent form by multiplying by 100
5% = sales tax rate