There were some people on a train 18 people get off at the first stop and 21 people get on the train there are now 65 people on the train how many people were on the train to begin with

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.