Range distance from the fire's center is the temperature less than 240c
500000/x^2+400

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.

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At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?