A cone has a volume V, radius r, and a height of 12 cm. A cone has the same height and 3 times the radius of the original cone. Write an expression for its volume.

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

where are the choices?

i think it might be a but you might want a second opinion