PLEASE HELP how many times larger is the volume of a cylinder if multiplied by 3

9 times

Step-by-step explanation:

how many times larger is the volume of a cylinder if the radius is multiplied by 3

Let the radius of the cylinder is r and the height is h

So, the volume of the cylinder is π r² h

If the radius is multiplied by 3

So, the new radius = 3r

And the new volume = π (3r)² h

                                   = π (9r²) h

                                   = 9 π r² h

                                   = 9 the volume of the cylinder of radius r

So, if the radius is multiplied by 3, The volume of the cylinder will be 9 times larger.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0