Distance (word problem) homework help?

Nolan walked to the store from his home at the rate of 5 miles per hour. after spending one half hour in the store, his friend gave him a ride home at the rate of 30 miles per hour. he arrived home 1 hour and 5 minutes(1 1/2 hours) after he left. how far is the store from nolans home? can you please give me the anwser and explain how you got it or draw a diagram plzzz i looked all over the internet for it and i cant find a solution.