Book Maths Puzzle Algebra

I need help solving this one. The amount of tropical rain forests in Central America decreased from 130,000square miles to about 80,000 square miles from 1969 to 1985. Let y be t

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Book Other Question

need help solving the equation by completing the square 3x^2-18x+28=0 The computer club went on a field trip to a computer museum. the trip cost $240 to be paid for equally by each club member. The day before the trip, 4 students decided not to go. This increased the cost by $2 per student. How many students went to the museum?