In Freeport, Illinois, Empire Street runs east to west and route 26 runs north to south. Zippy's Pizza parlor is located on route 26, 3 miles south of Empire street. Zippy's advertises that it delivers within a 4 mile radius. 1. Write an equation that represents the radius of delivery for Zippy's Pizza. Assume that Zippy's is located at the origin. 2. How far east and west from route 26 can you live on Empire street and still receive Zippy's Pizza delivery? 3. Little Cubs Field is located 2 miles west and 4 miles north of Zippy's. How far is Little Cubs Field from Zippy's? 4. How far is Little Cubs Field from the radius of delivery?