Anna has been ill in hospital for three weeks .(用since改写句子)如图,一块长方形绿地长100m,宽50m,在绿地中开辟两条道路后,道路宽都为x,绿地面积缩小到原来的88.32％,求x

Anna has been ill in hospital for three weeks .(用since改写句子)如图,一块长方形绿地长100m,宽50m,在绿地中开辟两条道路后,道路宽都为x,绿地面积缩小到原来的88.32％,求x
Anna has been ill in hospital for  three  weeks .(用since改写句子)
如图,一块长方形绿地长100m,宽50m,在绿地中开辟两条道路后,道路宽都为x,绿地面积缩小到原来的88.32％,求x

Anna has been ill in hospital for three weeks .(用since改写句子)如图,一块长方形绿地长100m,宽50m,在绿地中开辟两条道路后,道路宽都为x,绿地面积缩小到原来的88.32％,求x
Anna has been ill in hospital since three weeks ago.100×50-50X-100X+X²=50×100×88.32％

这是什么题呢？？题目？求什么呢？自己想想吧！！

It has been three days since Mary was ill。

英语 Anna has been ill in hospital since three weeks ago