Ride his bike to school, find other exercise that lets him stay inside such as pushups, situps, planks etc.
if his parents have a treadmill he can run on that instead
Answer:

Explanation:
Given: 
To express:
into 
Solution:
Use the following relations between
and
,
and 
Here,
denotes meter,
denotes kilometer,
denotes seconds and
denotes hour.


Therefore,

Make quick decisions. <span />
Answer:
because without it we wouldnt be able to breath
Explanation: