A quantity and its quarter added becomes 15. What is the quantity?

From the figure and statement provided, select the proper to prove statement. through a point outside a line one line can be drawn parallel to the line. mn= ab ab + bc= ac mis parallel to ! ab=bc als parallel to b

Need on this geometry question. explain how you did it.

Hi, can anyone show me how to do this problem? 100 points for this. in advance