Answer:
6
Step-by-step explanation:
60% of 40 = 24
25% of 24 = 6
Therefore, 6 girls in the class wear glasses.
Answer:
The correct answer is C. 1.5
Step-by-step explanation:
To find this, first find the difference from the value to the mean.
18 - 12 = 6
Now that we have this, divide it by the size of a standard deviation to find how many it is away.
6/4 = 1.5
-63/50
I think this is what you mean by simplest fom
Answer:
y = 64
Step-by-step explanation:

To get rid of the 8 in the denominator, you need to do the opposite of the expression. So opposite of division is multiplication. My multiplying each side by 8, you can get rid of the 8 in the denominator. Because if you divide 8 by 8 it is 1.

y = 64