If you paid $14 for 600, you paid:
600 * 14 = $8,400.00
If you sold them for $15.30 a share, you made:
600 * 15.30 = $9,180
9,180 - 8,400 = $780
The return on the investment being $780
Very very safe investment and not worth it.
Answer:
is one to one mapping, it is not onto mapping
Step-by-step explanation:

f₁(x) is one to one mapping
Let 
f₁(x) = f₁(y):
x₁³ = y₁³
f₁(x) is not onto mapping
Example: If f₁(x) = 7,
x₁³ = 7
![x_{1} = \sqrt[3]{7}](https://tex.z-dn.net/?f=x_%7B1%7D%20%3D%20%5Csqrt%5B3%5D%7B7%7D)
x₁ is not an element of Z
is one to one mapping, it is not onto mapping
the point where the two lines intersect will be your answer.
from the photo, your x-coordinate will be 4, and your y-coordinate will be 1. that's where the two lines meet, so that's the solution.
the answer will be (4,1).
i hope i helped! good luck.