I kinda need help, who is willing to help me?

The image of the point (-6, -2)under a translation is (−7,0). find the coordinates of the image of the point (7,0) under the same translation.

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct