As shown, a pipe is anchored to a wall at point A. (Figure 2) During the pipe's installation, several forces are applied to the pipe at different locations. If F1?1 = 61.8 NN , F2?2 = 73.0 NN , F3?3 = 88.9 NN , F4?4 = 54.7 NN , d1?1 = 0.110 mm , d2?2 = 0.270 mm , and d3?3 = 0.170 mm , what is MRA???, the net moment about point A due to these forces? Assume that moments acting counterclockwise about point A are positive whereas moments acting clockwise are negative.