Find the coordinates of the missing endpoint if p is the midpoint of eg. E(-8,6) p(-5,10)

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Ill mark the brainliest if you me with the these three questions 7,8,9