The answer is 420. Hope this helped.
Answer:
Primary : letters, artifacts, contracts
Secondary : documentaries, encyclopedias, biographies
Step-by-step explanation:
(I'm not too sure about contracts, so you might want to check yourself for that one)
The greatest common factor between these 2 numbers is 6
Your gonna start at a point then go up 6 and over 3 then make a point then so the same from that point and that’s your slope