Answer:
the answer you picked in the pictures is the correct one
The square root of 0.0036 can be calculated through the calculator. The answer is 0.06. WE can also take by the eye the square root of 0.0036 in which the square root of 36 is 6. The number must be greater than 0.0036. The answer is 0.06.
Its c.
If you will substitute those numbers to the pair of equations, both will be true.
1=-3+4
1=3-2