Answer:

Explanation:
Given:
- average walking speed,

- average biking speed,

<u>According to given condition:</u>

where:
time taken to reach the building by walking
time taken to reach the building by biking
We know that,

so,



What do you mean you need to be more specific
Answer:
the relative speed should be 40mph
Explanation:
B. They are rearranged.
The First Law of Thermodynamics states that matter and energy can not be created or destroyed.
Answer:
consumers get energy from eating other things plant from sun
Explanation: