Louisa wants to buy an online movie subscription that is on sale for 15% off. She writes the expression c − 0.15c to represent the cost of the subscription. Rewrite this expression in a different form to show what percent of the original price she will pay for the online movie subscription. Then compare your expression with Louisa’s. How are the expressions related? What does each expression tell you about the problem situation?

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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:

answer:   c ?

step-by-step explanation: