) Convert each of the following decimal numbers to binary, octal, and hexadecimal numbers. (a) (915) 10 (b) (174.25) 10 2. (20 Points) Convert each of the following binary numbers to octal, hexadecimal, and decimal numbers using the most appropriate conversion method. (a) (101110)2 (b) (10101.11)2 3. (20 Points) Calculate A+ B, A- B, Ax B, and A+ B for the following pair of binary numbers. (a) A (1011010)2, B=(101111)2 4. (20 Points) Find the 2's complement of each of the following binary numbers assuming n=8. (a) 101010 (b) 0 (c) 11111111 5. (20 Points) Calculate A + B, A-B. -A + B, and -A - B for the following pair of numbers assuming a 2's complement number system and n-8. Check your results by decimal arithmetic. Explain any unusual results. A-1101011, B-0101010