You have 12 of chocolate to make holiday candy . The first batch used 1/3 of the chocolate. How much chocolate was used ?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Find the commission on a $590.00 sale if the commission is 15%.