Please help! im barely learning geo in middle school! dont really know much.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

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