Solve the equation by completing the square.
9y

What's the difference between: x≥0 and nonnegative integer. ?

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.

Me i’m stuck on all these questions besides the two bottom ones