Answer:
5
Step-by-step explanation:
20/5 = 5/1
so the answer is c
13 should be b and
14 is a because geometric mean to have a common ratio
Answer:

Step-by-step explanation:
To find : Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year) ?
Solution :
Using metric conversions,
1 kilometer = 1000 meter
1 meter = 100 centimeter
So, 1 kilometer = 100,000 centimeter
and 1 million year = 1,000,000 year


So, 

Therefore, 
Answer:
Step-by-step explanation:
473.89/12= $39.49083 or $39.50 a month