$67-70)$ In the following problems, use the floating point format SEEMMMMM, where S $=$ O is $"+"$ and $5$ it$""$; EE is theexponent in excess$-50,$ and MMMMM are five digits of mantissa. Convert the following excess$-50$ numbers to their decimal equivalents:a $05423456$b$)5479021071-72)$ Show how $12\mathrm{.}25$ is represented in SEEMMMMM format$\mathrm{.}73-75)$ Multiply the two numbers $05312675$ and $05144359($in SEEMMMMM format.$)$ Leave the answer in SEEMMMMM format $($round if necessary$).$BONUS: If we record a song that is one minute long using $16-$bit sound samples, sampled at $44.1$KHz in mone channe$)$ without any metadata or compression, how large would the file be$?($Express your answer in Megabytes$)$