Asquare lawn has area 800ft^2. a sprinkler placed at the center of the lawn sprays water in a circular pattern as shown in the figure. what is the radius of the circle?

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?