Wes is completing a circular round pen for his horse and needs to know the area of the pen. if the diameter of the round pen is 50 feet, what is the area?

Carlos has 4/5 of a tank of fuel in his car. he uses 1/10 of a tank per day. how many days will his fuel last?

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1