Kindergarten children make red flowers, Xiao Ming makes 7 flowers, Xiao Hong makes 9 flowers, and Xiao Hua and Xiao Zhang cooperate to make 20 flowers. How many safflowers does each person make on average?
幼儿园小朋友做红花，小明做了7朵，小红做了9朵，小花和小张合作了20朵．平均每人做红花多少朵？
<gadget id="calculator">7 + 9 + 20</gadget>
<output>36</output>

<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<result>9</result>