Plz help I’ll give brainliest

Franco wants to double the volume of the cone. what should he do?

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

Askateboard ramp is in the shape of a right triangle what is the height of the ramp