What is the good type of fat called?

Well, its called fat. but there is a difference between fat on a candy bar and fat on chicken. The fat on chicken is completely unhealthy. DONT EAT IT ITS GROSS!
fat on a candy bar is artificial. in some cases you can eat it because your body can't survive without fat.

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.

The correct answer is "grounded".