Lawrence is testing how quickly water with baking soda freezes. He adds water with baking soda to one ice tray and plain water to another ice tray. He places each tray in the freezer and records the time when each one starts to freeze. What is the treatment in this experiment?

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

What is the solution of sqrt x+2-15=-3

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation