31 to the 9th power (31 9... i cant make the number small lol)
Answer:
C, the 3rd one
Hope this helped! Have a great day!
Answer:

Step-by-step explanation:
A ratio is a comparison of two quantities and can be written in several forms including fractions. It is most commonly written in fraction form or a:b.
To write a ratio, we count the number of each quantity we are comparing or use the variable for that quantity. We write radius:circumference. Recall, the circumference of a circle can be found using
or
.
We write r:
or r:
.
We can also write in fraction form:
or 
Your equation should look like this:
d = day
15 + 3.50d
Hope this helps!
Answer:
144 days
Step-by-step explanation:
160 · 0.9