River Racing is a company that provides inner tubes for children ond adults to float the river. The child lube has a diameter of 25 feet and the adult tube has a diameter of 3 feet. River Recing owns a total of 160 tubes ond the total diameter of all the tubes is 430 feet. Write o system to determine the number of child tubes, c, and number of adult tubes, a, Ino River Racing owns.
