Answer:
$ 3.75
Step-by-step explanation:
1/2 · $7.5 given
0.5 · $7.5 make 1/2 as decimal
$ 3.75 answer
I think the answer is 22mn2+66m2n-64 since there are no more like terms
Take the square root of 64.
You get 8.
-sqrt(64) = -8
-8 is rational since it can be written as a fraction of integers.
Consider the first blank is the green box.
Given:
The equations are


To find:
The value belongs in the green box
Solution:
We have,
...(i)
...(ii)
Adding (i) and (ii), we get



So, the value for the first black is 2x. It means the value belongs in the green box is 2x.
The values of three blanks are 2x, 0 and 13 respectively.
Therefore, the correct option is B.