Answer:
2
√
7
Step-by-step explanation:
√28 = 2√7 or roughly 5.29
work backwards! sqr of 28 = x^2 that equals 28
70
Answer: b?
We have 8 / (-4) = - 2; - 16 / 8 = - 2; 32 / -16 = - 2;
The common ratio of the sequence is - 2.