Please explain!

iii) The greatest, positive, subnormal, floating-point number has a binary representation of Mantissa Sign Exponent 0 0 0 0 0 1 1 1 1 1 1 1 1 Derive its decimal value? iv) The smallest, positive, subnormal, floating-point number that is greater than 0 has a binary representation of (recall that 010 = 0 0000 00000002) Sign Exponent 0 0 0 Mantissa 0 0 0 0 0 0 0 0 1 Derive its decimal value