Pls help me with these two..:)

Answer:
9. C) 12 and 10) C) 100 units
Step-by-step explanation:
Ignore the negatives, you just add the numbers 12 and 20 for number 9 and add both 50's on number 10.
Answer:
9)32
10)100 Units
Step-by-step explanation:
measure the distance , it's easy
-12 to zero is 12 , 0 to 20=20
so 12+20=32