Good Evening An aeroplane coming in to land passes over a point 1km away from it's landing place on a level ground If it's angle of elevation is 15 degrees. calculate the height of the plane in metres​

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.

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

What is the value of x in the following equation? -3x-2=2x+8