To find the volume of the cylinder when Tamika knows the volume of the cone, she must multiply the volume of the cone by 3.
The volume formulas are as follows:
- Volume of a cone: \( V_{cone} = \frac{1}{3} \pi r^2 h \)
- Volume of a cylinder: \( V_{cylinder} = \pi r^2 h \)
Since the cylinder volume formula does not have the \( \frac{1}{3} \) factor like the cone, to go from the volume of the cone to the volume of the cylinder, you multiply the cone's volume by 3.
Correct response: "She must multiply the volume of the cone by 3."