Sarah is twice as old as Bill so 2X=50 and X=25 so Bill is 25. Bill is 25 and bill is 5 times older than his sister Jane so 5n=25 N=5 so Jane is 5 years old. Jane's mom is 12 time older than Jane so 12x5=60 and so
is the distance between two consecutive maximum points, or two consecutive minimum points (these distances must be equal). Want to learn more about midline, amplitude, and period?
