Answer:
A
Step-by-step explanation:
Focus on what the question is telling you, as it's given to you in the question. It's saying five times, which means "×5" the number of person B, so it'll always be 5 times quicker, since they're breathing more times in a certain period of time than person B.
Hopefully this helped!
2x+7x=747
9x=747
x=83
83(2) = 166
83(7) = 581
Answer:
1184000
Step-by-step explanation:
lcm(2960,6400,2000)
prime factor:

Take the largest power of each factor:
