$1.$ Find the decimal value represented by each of the following $($unsigned$)$ numbers, where the subscript defines the number$$s base. Note, the $.$ in binary values is for readability only; it is not a decimal place and can be ignored in any calculations.

Hint: for hexadecimals, A$=10,$ B$=11,$ C$=12,$ D$=13,$ E$=14,$ F$=15.$