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:
angle NXo= 90-67 = 23
angle NXP=90
angle MXN= 70 + 67+ 23
MXO= 70 + 23
Step-by-step explanation:
Answer:
K=-89
Explanation:
K=10(-7)-19
Answer:
Step-by-step explanation:
6x10 to the power of 21 the answer is too long for my calculator sadly
Answer:
y - 4 = -5(x - -6)
Step-by-step explanation:
its correct