Problem 5 The cleaning expenses of Shoe Store #1 can be represented by the expression 350m + 1250. The cleaning expenses of Shoe Store #2 can be represented by the expression 460m + 220. The owner of the two
shoe stores wants to know the combined cleaning expenses of both locations. Formulate and simplify an
expression representing the shoe stores' combined cleaning expenses.

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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:

is there any other information given for this problem? this is not enough information.