Ineed with this: the volume of a cube is 729 cubic units. what expression makes 729?

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.

Which expression shows the sum of the polynomials with like terms grouped together

What is the ratio of the length of an object in yards to the length of the same object in miles?