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=> RAX =0 N

With no other force in the x direction , RAX  is zero.

=> RAY - 40 + 40 =0

=>RAY = 0 N

Frames

We begin by using the equilibrium of moments with point A as the moment center.

  which means,        -MA - 40(30/1000)+40(48/1000) =0;

=> M A = 7.2 N.m

Positive sign confirming the assumed direction is correct. Now by summing forces in the x and y directions we solve for the unknown reaction forces at point A.