Answer:
Step-by-step explanation:
Michael and Juanita are interested in the amount of sand required to build a sand pyramid of the size that they see while at a sand sculpture exhibit. They carefully measure the width of the square base of the sand pyramid which is 4 feet and the height of the pyramid which is 5 feet. How much sand is required to build this sand pyramid?

Each of the equations can be solved as shown below:
a. 
(<em>addition property of equality</em>)
(<em>Subtraction property of equality</em>)
<em> (Division property of equality)</em>
<em />
b. 
<em>Add like terms </em>
<em />
(<em>Subtraction property of equality</em>)
<em> (Subtraction property of equality)</em>
<em />
<em> (Division property of equality)</em>
<em />
c. 

d. 

<em>The value of x in each </em><em>equation</em><em> are:</em>
<em />
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domain of the problem is -5 and the range is 4
I believe the answer is D. because -12 + -1 equal -13
I'm not 100% sure I'm just trying to help. I've seen this question before and I believe the answer was <span>362,880, but that seems like an a full lot to me personally, but like I said just trying to help. :)</span>