Grandpa's house has a small rectangular vegetable garden, 34.5 meters long and 200 decimeters wide. If you want to fence this small vegetable garden, how many meters does the fence need? How many tomatoes can be planted in a small vegetable garden with one plant per 0.69 square meters?
爷爷家有个长方形的小菜园，长34.5米，宽200分米．如果要给这个小菜园围上篱笆，篱笆需多少米？在小菜园里种西红柿，每0.69平方米种一株，这样共可以种几株西红柿？
<gadget id="calculator">200 / 10 / 0.69</gadget>
<output>28.985507</output>

<gadget id="calculator">34.5 * 28.985507</gadget>
<output>999.999991</output>

<result>999.999991</result>