Step-by-step explanation:
By using Distributive Property on 3(-x - 2),
3(-x - 2) = (3)(-x) + (3)(-2) = -3x - 6.
Since -3x - 6 =/= -3x + 6,
they are not equalized.
The blank should be the power of -4, so the statement is 1.7 x 10^-4 = 0.00017.
After 2 hours : 9 inches left