The score on a geometry test are normally distributed with a mean of 80 and a standard deviation of 5, the test scores range from 0 to a 100, 12 students had test scores between 80 and 90. Estimate the number of students who took the test.

question:

could we have options?

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

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answer: can you give the

step-by-step explanation:

b.   e = 7.5h

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