Which geographic feature was common to the development of civilizations in ancient egypt, china, india, and mesopotamia?
(a) rain forests
(b) deserts
(c) mountains
(d) river valleys

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

What dimensions can créate more than one triangle ?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?