1. Convert the following binary number to decimal. please show the conversion step.
For example: 	 0b1101 = 1 + 4 + 8 = 13
a.	0b1001
0b1001 = 8 + 1 = 9
b.	0b11000100 
0b11000100 = 128 + 64 + 4 = 196
c.	0b100101 
0b100101 = 32 + 4 + 1 = 37
d.	0b111010 
0b111010 = 32 + 16 + 8 + 2 = 58
e.	0b1011 
0b1011 = 8 + 2 + 1 = 11
2. How many possible integers can an unsigned 5 bits binary represent? What is the largest decimal number? How about 8 bits binary? n bits binary? 
A 5 bit number can represent 32 unique numbers. The largest decimal number is 31. 8 bits can represent 256 unique numbers. n bits can represent 2^n unique numbers.