imbrittany1 imbrittany1 11-02-2017 Mathematics contestada Can someone explain to me how to do these, I dont get it. A hair stylist worked from 8:45 A.M. until 12:15 P.M. and 12:45 P.M. until 5:15 P.M. Estimate the total number of hours worked. 8 hr 7 hr 15 min 8 hr 15 min 7 hr 30 min