How do you work a number line uses 367 +65

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement