Sasha modeled an expression as shown below. 125
34
х
Which answer choice could NOT represent this expression?
A x + 34 = 125
B
125 - 34 = x
С
125 - X = 34
D
125 + 34 = X

it should either a or b

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:

he earned 78.75 in interest.

step-by-step explanation: