A gym offers two different membership options. In the first option, new members pay a one-time fee of $50 and a monthly fee of $30. In the second option, members pay a one-time fee of $100 and a monthly fee of $20. To find out when the cost will be equal, you will need to solve for m using substitution. Substitute the expression for the cost from the first equation into the cost, c, in the second equation.

  they are perpendicular to each other

step-by-step explanation:

the only answer choice that isn't complete nonsense is the one shown above.

the x-axis is not the diameter of any circle.

the x-axis has no midpoint.

the x-axis has no endpoints.

a line segment joining any point and its reflected image will be perpendicular to (and bisected by) the line of reflection, no matter what that line is. you can take advantage of this fact to construct the reflected image.