Xiaohong is 8 years old this year, her mother is 4.25 times younger than Xiaohong, and her mother is 3 years younger than her father. How old is dad this year?
小红今年8岁，妈妈的年龄是小红的4.25倍，妈妈比爸爸小3岁．爸爸今年有多少岁？
<gadget id="calculator">8 * 4.25</gadget>
<output>34</output>

<gadget id="calculator">34 + 3</gadget>
<output>37</output>

<result>37</result>