A middle school principal wants to change the lunch menu at the school. The principal surveys the students to determine how the students would feel about changes. Which survey method will produce the best representative sample

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Which expression is equivalent to the expression shown?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed