Aubree invests money in an account paying simple interest. She invests $30 and no money is added or removed from the investment. After one year, she has $32.40. What is the simple percent interest per year?

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step-by-step explanation:

answer: the correct answer is -32

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.