Ineed with 2 math questions word problems: 1. ben earns $12,800 a year. about 15% is taken out for taxes. how much is taken out for taxes? 2. at a sale, shirts were sold for $15 each. this price was 80% of their original price. what was the original price?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

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.