1. In the equation 4x – 2y = 19, a possible first step to isolating y is: a. Divide both sides of the equation by 2y.
b. Subtract 4x from both sides of the equation.
c. Divide both sides of the equation by 4x.
d. Subtract y from both sides of the equation.

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. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%

What is the ratio fraction form of 25: 9