Q2 only , Solution with explanation and steps please.

Q2 + Q3 only Solution with explanation and steps please.

1) Convert the following a. Binary (1000110), to decimal 010 b. Binary (0010110)2 to Hexadecimal ( 116 c. Binary (1010110), to octal ( Ds d. octal (731 ); to Binary ) e. Hexadecimal (AEF52 16 to Binary 2 f. Decimal (561).0 to Hexadecimal ( 016 2) Find the values of the following Roman number a. MDCI b. CLXV 1 3) Convert the following using alternative method. a. 250 59 b. 64