Answer:

a10 = -39366

Step-by-step explanation:

-6 ÷ 2 = -3

18 ÷ -6 = -3

so the common ratio is -3

an = a1 (r)^n-1

a10 = 2 (-3)^10-1

a10 = 2 (-3)^9

a10 = 2 (-19683)

a10 = -39366

2, -6, 18 rule: ×-3

-54, 162, -486, 1458, -4374, 13122,

-39336

-39336 is the tenth term