D. 21cm because you divide all sides by 2 then get your slope form and multiply by seven
Answer:
10⁴ seconds
Step-by-step explanation:
Given that,
A person breathes
in about cubic meters of air per second.
We need to find time taken to breathe 2.5 cubic meters of air.
In 1 sec =
m³ of air breathe
Let in x seconds, 2.5 m³ of air taken by the person.

Hence, in 10⁴ seconds 2.5 m³ of air is taken by the person.
Answer:
1006.72
Step-by-step explanation:
Multiply 9.68 by 104
Answer:y=8x
Step-by-step explanation: