There are 4,000 houses in Pedro's town. Last summer, 1,000 of the houses were for sale. What percentage of the houses in the town were for sale last summer? Write your answer using a percent sign (%).

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

Simplify this expression. 8x 16(x + y)

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?