Andre needs to buy hamburgers and hot dogs for a picnic. He has only $23.00 to spend and must buy at least 78 hamburgers or hot dogs. A store charges $0.50 per hamburger and $0.25 per hot dog. Which of the following is a possible way Andre might buy the hamburgers and hot dogs?

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