What is the measure of Angle A

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Which expression is equivalent to sq-80

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.