Please show all work. Dont write code, just solve by hand on paper, thank you

A set of points is given below S-((19,6), (9,17), (22,10), (6,15), (10,9), (12,10), (2,14), (1,11), (15,12), (8,4)) Chart Title 18 16 14 12 10 6 4 0 10 15 20 25 a) b) c) d) Use Graham Scan to find the convex hull of S. Show your work How many pops your algorithms have to make during the process? How many pushes it takes? Use Javis March to find the convex hull of S. Show your work. How many minimums you must find? Use divide and conquer convex hull algorithm to find the convex hull of S. Illustrate your work Use quick-hull algorithm to find the convex hull of S. Show your work. What's the time complexity of these algorithms? e)