Given:
are in geometric sequences.
To find:
The value of x.
Solution:
If a, b, c are in geometric sequences, then

...(i)
It is given that
are in geometric sequences. By using (i), we get




On further simplification, we get



Therefore, the value of x is 0.
Answer:
Here you go - IM NOT 100% SURE THESE ARE RIGHT
Step-by-step explanation:
1. 2 complex solutions
2. 1 complex solution
3. 1 complex solution
4. no complex solutions
First, let's simplify this a bit ok?

Now, as a decimal: 3.5
As percent you multiply the number by 100 % (which is 1, and you an always multiply by 1):
3.5 *100%=350 %.
140*.20=28
140-28= $112
so, the current price is $112