Answer:
$7.93
Step-by-step explanation:
20 - 12.07 = 7.93
Answer:

Step-by-step explanation:
Hello,


It means that

And we know that

So we got two equations

For 
For 
I assume that we are after two different roots so the solution for p is p=-11
b) 
So a quadratic equation with the expected roots is

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
The two cities are actually 427.5 miles apart.
Answer:
63
Step-by-step explanation: