Answer:
Multiply each number by -3.
Step-by-step explanation:
2 times -3 = -6
6 times -3 = -18
18 times -3 = -54
54 times -3 = 162
68°
As BA⊥BD, so ∠ABD = 90°
also, ∠ABD = ∠CBD + ∠ABC
⇒ 90° = 4x + 52° + 8x - 10°
⇒ 12x = 48°
⇒ x = 4°
now,
∠CBD = 4x + 52°
= 4(4°) + 52°
= 68°
66
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