An architect built a scale model of a shopping mall. on the model, a circular fountain is 27 inches tall and 63 inches in diameter. if the actual fountain is to be 6 feet tall, what is its diameter? 14 ft 12 ft 2.6 ft 42 ft ! due !

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15