Answer:
9√3
Step-by-step explanation:
√(81*3)
√81*√3
perp: 1/4
y - 4 = 1/4(x + 12)
y - 4 = 1/4x + 3
y = 1/4x + 7
answer is C
82
49 - 3 + 9 times 8 divided by 2