The maximum distance that the light on a lighthouse can reach is 20 miles. If the light can rotate 360 degrees, find the total area that it can light.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Write the expression as a single natural logarithm. 2 in a - 4 in y