A survey of top executives revealed that 35% of them regularly read Time magazine, 20% read Newsweek, and 40% read U. S. News & World Report. A total of 10% read both Time and U. S. News & World Report. What is the probability that a particular top executive reads either Time or U. S. News & World Report regularly?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

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