What is the value of the expression ?

Find the solution of each of the following.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

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.