Answer:
r=8
Step-by-step explanation:
Because 16 divided by 2 is 8
idk i cheat lol
the value of x is 1......
as we know B is the midpoint....
then,
5x-7=3x-5
5x-3x=-5+7
2x=2
x=2/2
x=1
the coordinates are (-2,1) (-2,-3) that is the answer
1: c over 3
2: 9
3: 15 square root of 3
4: 5 + 2√6
Sorry but that's all I got