13/24 is the answer to your problem.
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

Answer:
did not understand ur q.a
Answer:
Point - Slope Form: (y - 3) = 0.4(x - 5)
Slope - Intercept Form: y = 0.4x + 1
Step-by-step explanation:
Well if it's parallel, they have the same slope
Slope = 0.4
I'll do it in two forms:
Point - Slope Form: (y - 3) = 0.4(x - 5)
Slope - Intercept Form: y = 0.4x + b
3 = 2 + b
b = 1
y = 0.4x + 1
I might be wrong