Rick is laying new tile in his entryway. the room is a perfect square measuring 144 square feet. he’s using 1-foot-square tiles, laid in equal rows of 12 tiles per row. how many rows will there be in all?

Which of the following contains a variable?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)