Can someone please help me with this problem? It is for an AP Calc practice FRQ

You may NOT use your calculator on the following three questions. 14. 3- g(x) Let g be a function whose domain is the closed interval [0, 8]. The graph of g is shown above. The graph is made up of straight line segments and a semicircle. 2x - 1 Let f(x) = | g(t) dt. A. Compute f( {). B. What is the domain of f? C. Find f'(3). D. Find the x-coordinate of the absolute maximum of f on its domain