Help asap please I need help

Determine which postulate or theorem can be used to prove that lmn =nmo

If i had 1234 apples and 1 banana what is the total amount

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.