$**$Exercise $0**(2$ points$).$ In the code cell below, we've defined a list,

$```$python

N $=[10,100,1000,10000,100000,1000000,10000000]$

$```$

is a string representation in base$-$base;

exponent is an integer representing the exponent value.

Complete the function,

def eval$\_$fp$($sign$,$ significand, exponent, base$)$:

$...$

so that it converts the tuple into a numerical value $($of type float$)$ and returns it$.$

For example, eval$\_$fp$(\text{'}+\text{'},$

$\text{'}1\mathrm{.}25000\text{'},-1,$ base$=10)$ should return a value that is close to $0\mathrm{.}125.$