Write each statement as an algebraic expression. the product of two numbers, p and q, decreased by three times their sum.

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.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

The suare root of 9x plus 7 plus the square rot of 2x equall to 7