Answer:
5/6
Step-by-step explanation:
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They could look at the length of the book and the size of the font to estimate the length of a book.
No, because she only has $11.23 left.
common ratio = a4/a3 = a3/a2
8/a3 = a3/18
(a3)^2 = 8 * 18
(a3)^2 = 144
a3 = 12 or a3 = -12
common ratio = 8/12 or common ratio = 8/(-12)
common ratio = 2/3 or common ratio = -2/3
Answer: 12 or -12