Answer A
see photo attached for work and graph
The best answer to this statistic question would be 15.7% or, if rounded off, 16%. This is because those students who have GPAs are approximately at least 1 standard deviation away from the mean and more - which means that 84% of the GPAs are less then 3 pounds. I subtracted 84 from 99.7 (which is the whole distribution's percentage) and came up with 15.7.
Answer.
Attached my answer, hope that helps...
The answer is: 45/55 = 9/11
To find an equivalent expression, you can distribute the 4 to the parenthese. To do this, multiply the four by each term separately, then add all of the resultant terms.
4*x=4x
4*7y=28y
Therefore, the answer is 4x+28y
Hope this helps