I would appreciate an explanation on how to get the right answer. Thank you.

A floating point number is stored in a computer, allowing 11 bits for the mantissa and 8 bits for the exponent (for a total of 19 bits to store the number. What is the log (base 10) of the minimum normal value that can be represented in this format? Your answer must be correct to four places after the decimal. 37.9298 (with margin: 0.0001) A floating point number is stored in a computer, allowing 19 bits for the mantissa and 7 bits for the exponent (for a total of 26 bits to store the number. What is the log (base 10) of the maximum normal value that can be represented in this format? Your answer must be correct to four places after the decimal. 19.2659 (with margin: 0.0001)