Khan Academy is a 501c3 nonprofit organization. Where the base is the original value and the percentage is the new value. Lenny has received 6 boxes of paper which is 30 of the paper he ordered.
Since the test has 20 questions and he got 16 correct answers the number of questions he missed is 20 16 4.
This is the currently selected item. A b x 100. It contains plenty of examples and practic. After cross multiplying we get.