What statement makes the open sentence 2.4 = 6x true?
a. x = 4.0
b. x = 2.5
c. x = 0.4
d. x = 0.2

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

Ineed to know the answer to this algebra question.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?