d = |150 - 20t|
70 = |150 = 20t|
70 = 150 - 20t -70 = 150 - 20t
-80 = -20t -220 = -20t
4 = t 11 = t
Answer: 4, 11 seconds
The Tama monorail runs for 18 hours every day.
Answer:
D
Step-by-step explanation:

n+4=32
n=28
Okay, for the first part, you just add it all together. So 7x+19x+9+18. For the second part, just combine like terms. So you would get 26x+27.