Why can we take the results from our sample and generalize them to all of the Asteroid 592X and Firebird 3000 phones sold in this city.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

How do you write something in scientific notation?

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days