zayzxl zayzxl 19-11-2020 Mathematics contestada An airplane flew for 4 hours at a speed of a miles per hour (mph), and at (x + 10) mph for next 4 hours. What expression can be used to find the total distance covered by the airplane? A: 8x B: 8x+10 C: 8 (x+10) D: 8x+ 40