Acube measures 3 inches on all of its sides. what the volume of the cubes in inches

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)

24m^2n+30mn^2+18mn, a sweet challenge!

What's for breakfast? all people who ate at a certain restaurant were surveyed as to what they ordered on a particular sunday morning. 40 ate eggs 42 ate sausage 32 ate pancakes 13 ate sausage and eggs 15 ate pancakes and sausage 11 ate eggs and pancakes 6 ate all three items 3 people didn't eat any of the items how many people ate only pancakes? how many people ate at the resturant that morning? how many people didn't eat eggs?