Answer:
it is 6^3
Step-by-step explanation:
6³
6^-1 . 6^-4 . 6^8
6^-1 × 6^-4 × 6^8
applying multiplicative law of indices
6^-1 + ^-4 + ^8
(note: -1 + -4 + 8 = -1 - 4 + 8 = -5 + 8 = 3 )
So,
6^3
it's 16
82=5x+2
Minus 2 from both sides
80=5x
Divide by 5 on both sides
16=x
64 Maybe
the answer is b, 138
hope this helped
everything can be found in the picture