Answer:
Option A is correct.
Step-by-step explanation:
64 < x < 68
This inequality represent that the height x should be greater than 64 and less than 68.i.e.
x>64 and x<68
So, Option A is correct.
If you are looking for the surface area of the cube, it is 169. The equation for the surface area of a square is base times height. This would mean it’s 13x13 since all the sides are the same. 13x13=169
Answer:

So then the difference between the two proportions is 0.045 and if we convert this into % we got

Step-by-step explanation:
For this case we can define the following notation:
represent the unemployment rate for high school graduates with no college degree
represent the unemployment rate for college graduates with a bachelor's degree
And for this case we need to find the difference in proportions of those unemployed between these two groups, we want to find:

From the info given we have 

And the difference:

So then the difference between the two proportions is 0.045 and if we convert this into % we got

The square root of 10 because
sqrt(10) ^2 * 3.14 =
10*3.14 = 31.4
X equals 4 and the x axis