Angles of a triangle are in the ratio 2:4:3the smallest angle of the triangle is

Math each whole number with a rational,exponential expression

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.

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18