A local pool charges a flat monthly fee plus a fee for each day the pool is used. The total cost in dollars, y, to use the pool for x days can be found by the equation: y = 2.65x + 5. What is the daily cost of using the pool and why? A. $2.65 because it is the y-intercept

B. $5 because it is the y-intercept

C. $5 because it is the slope

D. $2.65 because it is the slope

Show work, please.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: