Please show all work possible and explain when necessary. Thank you

Given the 8-bit twos complement numbers A = 0011 1111, and B = 0100 1110, compute B in twos complement, and then compute A B by adding A and B in twos complement. Answer all the following:

Determine: B =

Compute: A B =

Is there an overflow, and why? _________________________________________

What is the value of A - B in decimal? _______________________________