Answer:
We have that The average number of minutes it takes her to run 1 mile
From the Question we are told that
Katerina runs 15 miles in 2 1/2 hours
Average number of minutes it takes her to run 1 mile
Generally
Therefore
The average number of minutes it takes her to run 1 mile
In conclusion
The average number of minutes it takes her to run 1 mile
Step-by-step explanation:
Answer:
I'm pretty sure it's 5544 
might be wrong
10(the number of tests) divided by 5(the amount of weeks)=2. That is 2 tests every week. 2x7 weeks is 14 tests.
Or this could be a trick question and he could have only had tests for 5 weeks.
Given:
μ = $3120, population mean
σ = $677, population standard deviation.
The population is normally distributed.
n = 20, sample size.
At the 95% confidence level, the confidence interval is

1.96(σ/√n) = 1.96(677/√20) = 296.71
Th confidence interval for the mean is
($2823.29, $3416.71)
Answer: ($2823.29, $3416.71)
A because I solved the problem