Answer: negative 6
Step-by-step explanation:
Since at the top of the mountain its already 0 and the degrees drop 3 each hour then multiply -3 by 2 hours and there you go.
Answer:
6 1/2 hours
Step-by-step explanation:
not sure
Answer: y = 108
Step-by-step explanation:
9 because the symbols around -12 and -3 so they would just become positive number 12 and 3. Subtract them and you get 9 :)