How Many ?

LIft 6 days a week M-S, alternating upper and lower body. Then some form of cardio later in the day and on Sundays. Not especially hungry after working out, thirsty though. Drink water or 0 Sugar Gatorade.

Every other day:

Back + Chest
Legs + Shoulder Press + Arms

When I was trying to lose weight, I hit the gym 5 days per week, weekends off. M-W-F I lifted full body with a short (20 minute) cardio session after; Tu-Th I did longer (60 minute) cardio sessions. The choice of whether to do cardio or weights first is highly personal, with many saying do whichever you want better results in first while you are fresh, but I say always lift first because the risk of injury increases when tired.

I'm currently in a muscle-building phase, so I lift four times per week, with Mon-Thu dedicated to anything above the waist (chest, back, arms, shoulders) and Tue-Fri for below the waist (legs, abs). If I have a dedicated cardio session, it's on Wednesday at low intensity, but usually I just walk a couple miles each day and call it good.

Within a lifting session, regardless body parts worked, the general rule of thumb is to do the heaviest and/or most complex lifts early, and save the lighter work for later when tired. This helps lower risk of injury, as well as the added benefit that if you have to cut your workout short, you will have still done the lifts with the most benefit. So chest comes before shoulders which comes before arms, back before arms, large leg movements like squat before small-muscle moves like calf extensions, etc.

I carry a premixed protein shake to the gym to chug as soon as a lifting session is complete, though I typically do not have increased hunger after cardio, just thirst for water.

The number of days off per week is highly personal, though most experts will agree that everybody outside of professional athletes should take at least one day off per week where you do nothing more intense than walk around the house, maybe do grocery shopping or walk the dog, that sort of thing. For people new to exercise, the commonly given advice is to start with no more than three exercise days per week, sometimes just twice, and over time work up from there.

If lifting weights, try to give at least two days between working the same body part: if you work chest Monday, do not touch chest again until Wednesday at the earliest. And be aware that some body parts are used in multiple workouts: triceps (the back of your upper arms) are used in both chest and shoulder movements, so a schedule of M-chest, T-shoulders, W-arms will not give your triceps a chance to rest and recover, which can lead to overuse soreness and injury.

Cardio can generally be ok to do every day, as long as you pay attention to fatigue levels.

Currently on a cut

Weights 6 days per week
Monday chest and triceps
Tuesday shoulders and biceps
Wednesday quad focused legs
Thusday off
Friday chest , shoulders
Saturday hamstring focused legs
Sunday back and biceps

Cardio 1 hour per day at a fast incline walk

I eat regular meals so 1.5 hours pre workout and 1.5 hours post workout, that way I’m fuelled for my workout and just getting hungry buy the time my next meal is due. I stay hydrated throughout the day as usually consume 1 litre of juice during exercise periods

Generally, six days/week.

Alternating push/pull workouts with one leg day.
Cardio M, F - typically 3 miles on the treadmill after I lift
Sat - long-ish slow run.
Sun - recovery

I usually workout fasted and have 1 scoop of whey protein when I'm done before I have breakfast - which is usually a few oz of granola and some sort of fruit (pineapple, bananas, cantaloupe, etc.).