Answer:
It should be -344
Step-by-step explanation:
The common ratio is -2.
Using this common ratio you can find the remaining 3 numbers.
Which are: 64(-2) = -128, -128(-2) = 256, and 256(-2)= -512
-8+16-32+64-128+256-512 = -344
the answer is A
a ≈ 1.8
a / sin (180 - 105 - 15)° = 2 /sin 105°
a = (2 /sin 105°) x sin 60°
a = (2 / 0.97) x 0.87
a = 1.79 (≈ 1.8)
B. 7
8/5 or 1.6
