John bought a car for $20,000. he sold it for a 30% profit. from the money raised from this sale, he bought another more expensive car, which unfortunately he had to sell for a 30% loss. what was his overall profit or loss?

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step-by-step explanation:

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.