write an equivalent expression by using the distributive property (un-distributive) and factoring out a common factor. 3x+12-9y=​

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.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

What is the value of p in the equation y^ = -4x?