VENN DIAGRAM
pls help im really confused

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

Determine which postulate or theorem can be used to prove that lmn =nmo