What are the applicable names for quadrilaterals?

i don't know what applicable means lol

You work for a lender that requires a 20% down payment and uses the standard depth to income ratio to determine a person‘s a little eligibility for a home loan of the following choose the person that you would rate the highest on their eligibility for a home loan

100 points, hi, i’m not sure how to get the equation from the graph and table.

What is the least common factor of 6 and 8