Answer:
A
Step-by-step explanation:
using the rule of exponents
•
×
⇔
, hence
× 7² =
= 
Is this from k12? i am a k12 student, and the answer should be 2.2 units but I could be wrong.
Answer: 120 beats per 45 seconds
Step-by-step explanation:

40x=356000 x= 8900 applications
you make x the number of total applications
30/78 simplified is 15/39