Aladder is resting against a wall. the ladder and the ground make and angle of 45° and the ladder is 7 ft from the wall. how long is the ladder

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.