Step-by-step explanation:
A) Divide 1.68 into 3, the answer will be the answer to the question.
B) Times the answer to question a by 5
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Answer:

Step-by-step explanation:
Given that,
The side length of a square, l = (x+4) inches
We need to find an expression to represent the area of the square.
The area of a square is given by :

So,

So, the area of the square is
.
This is the famous Fibonacci frequence. it's by adding the 2 terms in front. like 2 + 3, so the next term is 5. and 5+ 8, the next term is 13.
Basically if you have an exponent at the end of a 10,

, then in the end the extended notation is going to have 7 zeros. So it'll be 10000000. Then you multiply whats in the rest of the equation together. There's the beginning :) I hope it helps.