How to get the simple interest

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.