I can’t see your question I wish I could help you
What are the following rates?
Answer:

Step-by-step explanation:
Move
to the denominator in 
using the negative exponent rule 
Answer:
3.140
Step-by-step explanation:
hope this helped
Answer:
tHE FIRST OPTION
Step-by-step explanation:
A colon is representative of a ratio
for example
1:2 is a ratio