Question $5-$ Overflow with signed and unsigned numbers $(8$ pts$)$

Let $A=(71{)}_{10}$ and $B=(73{)}_{10}.$ Both numbers are stored in $8-$bit registers, and are added using an $8-$bit adder circuit. The output of the $8-$bit adder is an $8-$bit sum and a carry bit into the ninth bit position which is an indication of overflow in the unsigned range.