Kirana buys boxes of crackers that each has the same cost c. She represents the cost of 3 boxes of cheese crackers, 4 boxes of poppy seed crackers, and 4 boxes of plain crackers using the expression 3c+4c+4c . What equivalent expression can represent the cost? Help Please I Really Need The Answer Or Else I Will Get A Failing Grade SO PLEASE HELP ME
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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:

answer:

a=9

step-by-step explanation: lmk if you need a explanation

4n=2m

ratio of m to n: 2/4 = 1/2

answer

a. 1/2