Ur lines are parallel...they never intersect...means there is no solution...
ur answer { } or empty set
Answer:
-2a + 3
Step-by-step explanation:
We can substitute a + 7 for x:
f(a + 7) = 17 - 2(a+7) = 17 - 2a - 14 = -2a + 3
Answer: 
Work Shown:

This can be rewritten into 
Answer:
D) 0 ≤ p ≤ 1
Probability is 0 when there's no chance of occurrence
Probability is 1 when the event is certain to happen