Answer:
95
Step-by-step explanation:
What did the answer end up being?
r = 3.
16 = 10 + √(3r + 27)
√(3r + 27) = 6
Square both sides:
3r + 27 = 36
3r = 36 - 27 = 9
Check the result:
Left side of the equation = 16
Right side = 10 + √(9 + 27)
= 10 + √36 = 16
I think it is C 8,-4
I think