Answer:
4000g
Step-by-step explanation:
I believe the answer is B.
5-15 equals -12
so the temp was -12
B) 421
√2 + √-18
√2 + √9·-2
√2 + 3√-2
(3 +1 )(√2 ·√-2) = 2i
4 · 2i