Circumference= pi x Diameter so since you're using 3.14 as pi, multiply 12 * 3.14 which is 37.68. Round to nearest tenth to get 37.7 as your answer. A-37.7
Step-by-step explanation: it cant be no solution because no solution will be a vertical line it can be one solution becuase y=x is a solution and so is y=4
