If it takes 25 for Lori to change into one outfit, you would do 25 x 7 = 175. To split that into hours and minutes, keep subtracting 60 until you get a number less than 60. 175 - 60 = 115 - 60 = 55. We subtracted 60 two times, so that would be, in total, 2 hours and 55 minutes.