Does anybody know how to do this and explain it to me clearly plz and thx - 1/2 x = 6

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2