In the following problems, you are asked to convert from one number base to another. 1. (3 points) Convert the 8-binary binary expansion (0101 1001 ), to a decimal expansion. 2. (3 points) Convert the following decimal expansion (234) to an 8-bit binary expansion. 3. (2 points)-Convert the following hexadecimal expansion (CAB) to an octal expansion. 4. (2 points)-Convert the following binary expansion (0101 1011 1001 1101 ) to a hexadecimal expansion.