Answer:
can u explain more?
Step-by-step explanation:
D
66 km
6 * 11 = 66
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
i need more information about the question... i suggest googleing it