1. The problem statement, all variables and given/known data 1) How to convert 101010.0101B to decimal? 2) and Hexa number 17DB.C to Binary. 3) and lastly, -101 (decimal) to the 2's complement form. 2. Relevant equations 3. The attempt at a solution for the first one, clearly my problem lies at .0101B. I thought it's 1X10^-2 + 1X10^-4. Is it correct? for the second one, im not sure what the answer is because of the ".C" third, i know how to do 2's complement for those without negative. So how should i do those with negative sign?