If Marissa can type 72 words per minute, how long will it take her to type 600 words at the same rate?
Round your answer to the nearest second.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

How many ordered pairs of positive integers satisfy xy=32?

Identify the number as a regional or irrational.explain. 291.87