A plane has been flying for 5 hours and has covered a distance of 1500 miles. At this point, the plane is at an altitude of 35,000 feet and it starts descending steadily. After 8 minutes, it is at 17,000 feet.

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

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 difference between the equations of a vertical and a horizontal line?