Using proportions, it is found that, including the tax, she will spend $26.5625 on the hat.
A proportion is a fraction of a total amount.
In this problem, along with the $25, she pays a sales tax of 6.25% of the $25, hence:
Tax = 0.0625 x 25 = 1.5625.
Total = 25 + 1.5625 = 26.5625.
She will spend $26.5625 on the hat.
More can be learned about proportions at https://brainly.com/question/24372153
