Draw to explain how to add 7 and 6 by making ten

Which of the choices shown could be used to prove that aacp=abcp ?

Are the corresponding angles congruent? explain why or why not.

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.