Answer
$0111100000000011$
Work Step by Step
The first 10 bits represents mantissa and the next 6 bits represent base-2 exponent.
$7.5=7+0.5=111_2+2^{-1}=111.1_2=0.1111\cdot 2^3$
The exponent is $3=11_2$
The number is:
$0111100000000011$