Please excuse my dear aunt sally ( parentheses, exponents, multiplication, division, addition, and subtraction )
When you find the mean you add all of them together. Then you divide your answer by how many numbers there are that you added.
So what I did was add 29+30+28+32+29+31+27= 205
then divide 205 by 7 and you get 29.285
(2x/-5x)+x^2
(x(2)/(x(-5))+x^2
(-2/5)+x^2, the x values cancel in numerator and denominator and simplify to -2/5
Since 24/6 = 4. So 4 is a integer, rational number, and whole number
Yes they are entirely contained
