exam Maths Puzzle Numerical Ability

vinyl disc is 12 inches in diameter. when a record player needle is placed on the outside edge of a vinyl record, usa a calculator to find how far the needle travels in one rotation. Round to the nearest tenth.

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please help!! find the length and width of rectangle ABCD. top left of rectangle is labeled A top right D bottom left B bottom right C between B and C is P=140cm between D ancd C is x thanks for the help. Marla begins waling at 3 mi/h toward the library. Her friend meets her at the halfway point and drives her the rest of the way. The distance to the library is 4 mi. How many hours did marla walk?