The correct answer is 9.
Because they share a common angle at the top, we know that we can create a proportion using similar sides.


Now we can cross multiply to solve.
12*6 = 8*x
72 = 8x
9 = x
I. 3*2^0
II. 3*2^1
III 3*2^2
IV. 3*2^3
V. 3*2^4
VI. 3*2^5
The sum 3*(2^0+2^1+2^2+2^3+2^4+2^5)=3*(2^6-1)=3*(64-1)=3*63=189
D is the answer
Answer: Okay! Here is your answer!
Exact form : 41/6
Decimal form : 6.83 (line over the 3)
Mixed number form : 6 5/6
Step-by-step explanation: Substitute the value of the variable into the equation and simplify.
Hope this is what you were looking for and I hope it helps you out! ☺