15 I think??(sorry IF YOU GET UT WRONG)
5 - 7
10 - 14
15 - 21
20 - 28
25 - 35
30 - 42
35 - 42
40 - 56
45 - 63
50 - 70
55 - 77
60 - 84
65 - 91
70 - 98
75 - 105
105 with a little extra c:
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)
It
would be: Quadratic -x^2 + 2x - 3. Because if we do x = 3,

Hope this helped! Brainliest is always appreciated.
3/8 as a percentage is 37.5%