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Explain why vertical lines are a special case in the definition of parallel lines.

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

In angle pqr find the measure of