A mountain on a tropical island experiences changes in its height due to volcanic activity. Its current height is 2,773 meters, which is 6% shorter than it was when the mountain was last measured. How tall was it then?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

The rectangle on the right is the image of the rectangle on the left. what transformation would result in this image? reflection rotation translation dilation

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%