Answer:
3
Step-by-step explanation:
Since we know QR and RS are the same, we can add them together
6 + 6 = 12
Since the whole line is 15 we subtract 12 from 15
15 - 12 = 3
Answer:
9
Step-by-step explanation:
Answer:
im guessing it will take 3 hours to get to -1 F
Step-by-step explanation: