Grant is thinking of two numbers. he says that one of the numbers is twice the other number and the sum of the number is 39. what are the numbers.

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?

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