exam Maths Puzzle Numerical Ability

A company has 2 machines that produce widgets. An older machine produces 23% defective widgets, while the new machine produces only 8% defective widgets. In addition, the new mac

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I am attempting to help my daughter with her math homework and don't know what I am doing, please help.

Milk Problem: Handy Andy sells one-gallon cartons of milk (4 quarts) for Given a right triangle ABC, with angle A = 90degrees and AB=4, AC=6, find the length of altitude AD.