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Answer:
47.73% probability that it takes Renee at most 29 minutes to go grocery shopping
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X lower than x is given by the following formula.

Uniformly distributed between 18.5 minutes and 40.5 minutes.
This means that 
What is the probability that it takes Renee at most 29 minutes to go grocery shopping

47.73% probability that it takes Renee at most 29 minutes to go grocery shopping
You multiply radius by 3.14 by the height if you plug it in your equation is 8×3.14×15 which equals 1005.31 which rounds to 1005, the answer is 1005! :D
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Step-by-step explanation:
Ermm you're gonna have to write the entire question here for assistance