The commission rate is 44.8%.
The first step is to determine the commission on the first $10,000 : 0.1 x 10,000 = 1,000
The second step is to determine the commission on the next $15,000: 0.12 x $15,000 = $1,800
The third step to determine the commission on amounts more than $25,000 : x%(29,665 - 25,000)
x%(4,665)
Total commissions earned on amount more than $25,000 : $4,891 - (1,800 + 1,000) = $2091
Now, determine the commission rate : $2091 / $4,665 = 0.448 = 44.8%
To learn more about commissions, please check: https://brainly.com/question/20987196
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