The answer is D
8x3x3 =72
5x3x9=135
72+135= 207 cm^3
12/3 is 4 so multiply each by 4 so 7.79 x 4 is 31.16 5.68x4 22.72 13.99x4 55.96
31.16 + 22.72+ 55.96
Answer: $109.84
Step-by-step explanation:
Below is an attachment containing the solution.
Given:
Consider the number as <em>x</em>.
The objective is to represent algebraic expression for, 2 is subtracted from the square of a number.
Explanation:
Since the number is given as <em>x</em>, the square of the number can be represented as,

Now, subtract 2 from the above expression,

Hence, the required expression is x²-2.