Barry and Robin walk to Dunkin' Donuts each Saturday to meet for coffee and donuts. Barry walks the 2 miles from his house in 30 minutes and Robin walks the 3miles from his house in 36 minutes.a. Find the unit rate in minutes per mile for Barry.b. Find the unit rate in minutes per mile for Robin.c. Who walks faster, Barry of Robin?Each answer must be explained in detail using the correct vocabulary to receive full credit.