Same amount of time every hour is constant rate.
25 min / 5 hrs = 5 min per hour
8 hrs × 5 min per hr = 40 min rest
SA=4pir^2
SA=4pi13^2
SA=4pi169
SA=676pi ft^2
In order to figure this out you need to use
Descartes Rule. I attached a picture showing Descartes Rule. If the signs changes for when x is positive then the number of times it changes are the possible positive solution. If the sign changes when x is negative then the number of times it changes are the possible negative solutions. With that said the answer is A. View the picture I have attached for the possible + - and imaginary solutions.
Answer = A) One possible positive solution.
Answer:
D. None of the above
Step-by-step explanation:

P.S. hope it helped. If you have any questions, I'll be glad to answer them❤
Answer:
18
Step-by-step explanation: