Pleased help me with this one thank you;)

Given the load supported by the beam as shown. Determine the reactions at A. Note: the location where the pulley cable attaches to the wall is NOT part of beam A-B. State the answer in standard Cartesian notation (i, j, k). Include directions corresponding to a standard x-y coordinate system (+x to the right, +y upward, +z out of the screen). 1.5 ft B A 20 lb F = (if any) M = (if any)