Help I’m not the best at Math. The questions in the images. First to answer correctly will be marked brainliest!

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)