Wildlife biologists tag deer in wildlife refuges. they originally tagged 240 deer and released them back into refuge. the next month, they observed 180 deer, of which 30 deer were tagged. approximately how many deer are in the refuge? write a proportion and show your work to determine ur answer.

Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.