I got 23, 18, and 25 for the first one idk it's not on there though. Did you get an answer at all? I could try to get it again maybe I did something wrong
A = y(9 + 3x) factor y out of 9y+3yx, then devided both sides by (9+3x)
A/(9+3x) = y
√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number.
13 - √- 81 = 13 - 9i
What you want to do with this equation is make a triangle connecting the two points you have and count the distance (rise/run) for this you would get 6/1 !
The order is -1.4, -3/5, 1/4, 0.9, and 9/2. So
D is the correct answer