N-8=20 is the one
probably the one cut off
Answer:
C
Step-by-step explanation:
Let me know if you need an explanation
Answer:
k = -2
Step-by-step explanation:
If 
Then

So

From this follows k = -2
For the first question the answer is the second option.
For the second question the answer is the first option.
Hope I didn't mess up for your sake
2/5 of 30 = 12
30 + 12 = 42
£42