Maria isn't correct of this. Adding these will get you 82960 (You add the numbers) She must have miscalculated.
D, you have to factor 3 out of 6x squared
2 hours = 120 minutes. Divide 120 by 2, which is 40. So she has 40 minutes for each assignment
4/5+3/5 = 7/5 = 1.4
3.5X5 = 17.5
1.4 + 17.5 = 18.9 = 18 9/10
