1. -5+2.
2. 1-4
I hope this helps. I didn't really know what it was asking.
1. 10=5(2)
2.k=5
3. 10=1/5(2)
4.2=5(10)
Thursday: -2 deg C
Friday morning, 1 deg C lower: -2 deg C - 1 deg C = -3 deg C
Friday evening: 3 deg C lower: -3 deg C - 3 deg C = -6 deg C
Answer: -6 deg C
It is 40 1/2 because it's a mixed number<span />