Answer:
C. 74
This is because the total angle measure is 360 degrees
1.360-90 because we see a 90 degree angle here
2. 270-109=161
3.161-87=74
answer 74
We know that they have:
2 entrences
3 ways to chose (escalator,elevator and stairs)
8 gates
and again 3 ways to chose (escalator, elevator and stairway)
now you have to multiply it:

There are 144 different ways that Anita and Terry can go from street level to the trains:)
what question theres none
1st option, <
sqroot of 7 is 2.6, 14/5 is 2.8.
2.8 is bigger than 2.6
5x -15 + 3 -8x = 13
5x -12 -8x = 13
5x -8x =13 -12
-3x = 1
x = -1/3