The second equation, its setup is correct
You divide 9068 by 4 (sections), you will then get 2267
It's c 18, because the diameter is the longest chord so it would be greater than 15.
I would say yes and no because estimations aren't exact, they're close to the correct value. Trent's estimation is correct since 53+12=65, if we were looking for the exact distance, Trent would be wrong because there are fractions too, so the exact value would be 66 (5/12) or 65 (17/12).
Hope this helped :)
Answer:

Step-by-step explanation:
Given



Required
Determine the value of r
The value of r can be set up percentage increase formula as follows:

Substitute values in the above equation

Cross Multiply

Convert percentage to decimal


And the value of 


Hence, Cody's current rent is $43.35 monthly