Assets purchased between the 1^st and 15^th of the month are depreciated for the entire month; assets purchased after the 15^th of the month are treated as though they were acquired the following month. What is total 20X1 depreciation for the 3 machines?

There is a state table of a synchronous network. It has 2 inputs (X1, X2) and one output (Z). The network has 4 states (A, B, C, D). It begins its operation X1, X2 = 1,1 and y (present state ) ="A". Follow the sequence of CLOCK, X1, X2, y (present state), Y (next state), Z signals and illustrate it on a timing diagram. The input combination changes at the moment of the first (raising) edge of the CLOCK, and the next state" (Y) becomes ,,present state (Yy) at the moment of the second (running down) edge of the CLOCK impulse. The horizontal axis of the timing diagrams is the time. The input sequence: X1, X2 = 1,1 0,1 1,0 1,1 1,0 0,0 y \X1,X2 A B C D 00 B 0 C 1 D 0 A 1 01 C D A B 1 0 1 0 11 D0 C B A 0 1 1 10 C 1 D 1 A 1 A 0