Answer:
(40,30)
Step-by-step explanation:
This is when the prices are the same so they cross on the graph.
The answer to your question is 24x-42
D.8
A and C are out because they would get you ether lower or equal to 20, which is equal to AC and your trying to find X in AB which is so posed to be the what equals AC+BC.
AB=AC+BC
5x=20+BC
5(8)=20+BC
40=20+BC
40=20+20
AC equals 20. AB will have to equal AC+ CB. If you put in A.4 in AB 5X you will get twenty and that not what you want. You want to get a number that will get you the an answer greater to AC. So 5(8)=40.
Answer:
28.6 (90% sure)
Step-by-step explanation:
To solve this work backwards
=42
=42*.80 = 33.6
=33.6-5 = 28.6
The solution is in the attached file