Quadrilateral fghj is dilated according to the rule do,(x, y) to create the image quadrilateral f'g'h'j', which is not shown. what are the coordinates of point j'? (-2,-4) (-2,-6)

I'll give brainliest if you answer right : )

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]