Answer:
A
Step-by-step explanation:
The function has vertical asymptotes at x=7 and x=-3, so the denominator needs to have factors (x-7) and (x+3).
This eliminates all the options except for A.
Answer:

Step-by-step explanation:
<em><u>Given:</u></em>

<em><u>Solve for:</u></em>

<em><u>Solution:</u></em>
(1) Let's move all of components that do not contain
(our target) to the right side (notice the change of sign of
from negative to positive):

(2) Let's divide both sides of equation by 4:

(3) Now, we simplify the left side:

This is the solution.
Hope this helps!
:)
Answer:
Market economy
Step-by-step explanation:
Once again this is because they are changing their prices and items for sale because of the changes in market.
Answer:
17: 6:48
18: 9:45
19: 85 minutes or 1 hour and 25 minutes
20: 165 minutes or 2 hours and 45 minutes
Step-by-step explanation: