30,155-13,876=16,279
16,279 people spend on the summer months in spring lake.
Step-by-step explanation:
We know that,

Where,
X = raw score = 84
μ = mean = 68
σ = standard deviation = 10
Putting the values,

The percent of his sales that were less than or equal to 84 inches, is

Therefore, the remaining 100-94.5=5.5% were more than 84 inches.
Answer:D
Step-by-step explanation:
Answer:
200
Step-by-step explanation:
Divide 400 by 1/2 or 2.
From the ratio given you can determine that m is proportional to 1/(r^3). You can write this as m = k * 1/(r^3), k being your constant of proportionality. Then use this to calculate the next parts of the question.