What property is demonstrated by 7+h=h+7

Write the sentence as an equation. z plus 372 is equal to 160

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box