Find the circumference of a circle with radius = 30 mm.

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.

2x minus y equals 6, x plus y equals negative 3

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?