John is a quarterback. This year, he completed 350 passes, which is 70% of all the passes he's attempted this
year.
How many passes has John attempted this year?

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.