= Select the two pairs of values that give the expression a value of 25. x2 + 3y A. X = 2; y = 7
B. X = 2; y = 8
C .x = 3; y = 4
D. X = 4; y = 3
E. X = 4; y = 6​

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:

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

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