wiring - How to connect one set of wire (+ ground wire) to outlet - Home Improvement Stack Exchange

So I've been going through the house and have been updating our outlets and it usually involved connecting two sets of wires and a ground wire. Today however, I ran into a set up that consisted of

wiring - How to connect one set of wire (+ ground wire) to outlet - Home Improvement Stack Exchange

wiring - How to connect one set of wire (+ ground wire) to outlet - Home Improvement Stack Exchange

wiring - How to connect one set of wire (+ ground wire) to outlet - Home Improvement Stack Exchange