Answer:
c
Step-by-step explanation:
1. 538 - 247 = ?
2. 8 - 7 = 1
3. You can't subtract 3 and 4, so you have to take number from 5 (turning it into a 4) and then you add a 1 right next to 3 (which makes it 13;13 - 4 = 9
4. 4 - 2 = 2
538 - 247 = 291
So the answer is 291.
2 hours = 120 minutes. Divide 120 by 2, which is 40. So she has 40 minutes for each assignment
I think the answe would be 4(56x)
The answer is -21.4
Hope that answers your question ;)