What is 1/2+1/4 do you add the denominator?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

What is the product? a-3/15a × 5/a-3