Answer: 720 ways
Step-by-step explanation:
Given
A train has 1 main engine and remaining 6 train cars
If the engine is always in the front the remaining train cars can be arranged is

These three angles are on a line so must total 180°.
So 180-(52+58)=
180-110=70
So angle q is 70°.
Answer:
20 weeks
Step-by-step explanation:
35+5=40
40/2=20
The one that goes from corner to corner......i think if i get it wrong sorry