Billy was doing push-ups at a rate of 30 per minute. How long did it take him to complete 150 push-ups?​

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.

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?