Determine whether quantities vary directly or inversely and find the constant of variation. it takes four identical water pumps 6 hours to fill a pool. how long would it take three of these same pumps to fill the pool, assuming they all pump at the same rate?

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?