Answer:
a1
Step-by-step explanation:
Answer:
parallel
Step-by-step explanation:
no matter how far the lines stretch, they will all never meet, so they are all parallel
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: a > 4
<u>Step-by-step explanation:</u>
-5 + a > -1
<u>+5 </u> <u>+5 </u>
a > 4
Graph: 4 o-----------→
Interval Notation: (4, ∞)