Pls ! medal! joey has a beach ball with a radius of 20 cm. what volume of air will it hold when fully inflated? (round to nearest tenth.) a) 83.8 cm^3 b) 251.4 cm^3 c) 1676.2 cm^3 d) 33,493.3 cm^3,

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