The problem gives you the area, it tells you to find the height which is 8.48528 or 6 root 2
So 18 is most likely gonna be D 19.5 then question 19 looks a bit bigger so I would go with A 22.5 or it’s gonna be C 19.5 so flip a coin on that one and now for question 20 it’s gonna be 11.3
Answer:
D. All if the choices , credit cars , banks and issuer banks
54 = 2(4x-3) + 2(x)
54 = 8x-6 + 2x
60 = 10x
6 = x
so two sides are 6 meters, and the other 2 sides are 21 meters
A - (x, y) = (38/5 , 2/5)
I’m sorry if it’s wrong :(