Rewrite this expression as the product of an integer and a sum or difference.
9 + 72

Which system of linear inequalites is represented by the graph?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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