4. Fоr the cоmpоsite cross-section shown in Problem 1, cаlculаte the first moment of аrea (Q) at point A, located 85 mm above the x-axis. The neutral axis (N.A.) is assumed to be 35 mm above the x-axis. Note: the 35 mm to the neutral axis may not be what you found in problem 1, but you should proceed with that value for this problem. Show all your work. Upload together with other solved problems at the end of this exam.