PLEASE HELP 1. If DE= 4x-1, EF = 9, and DF = 9x - 22, find the value of x.
2. If DF = 78, DE = 5x – 9, and EF = 2x + 10,
find EF.
3. If DE = 4x + 10, EF = 2x – 1, and DF = 9x – 15,
find DF.
4. Find the distance between each pair of points. Round to the nearest tenth.
The distance between (-4, 5) and (4, 0) is The distance between (-8, -2) and (6, -1) is

5. Given the graph below, find GH. (round to the nearest tenth)