<h2>
Thus, the required "option 4)" is correct.</h2>
Step-by-step explanation:
We find,

To find, the binomial expansion of of
= ?
We know that,

∴ 
Here, n = 7, x = x and y = 2y
= 


∴ The binomial expansion of of

Thus, the required "option 4)" is correct.
You didn't say what you're supposed to do with that equation.
Do you need to find out what number 'g' is ?
To do that, just add 5 to each side of the equation.
Answer:
Each block weighs 2.2 lbs
Step-by-step explanation:
I calculated the unit rate by dividing 11 by 5, and got 2.2. To prove this is right, I multiplied 2.2 by 5 and got 11, which means this is correct.