Answer:
15
Step-by-step explanation:
18-x=3
18-3=x
18-3=15
The domain the given graph is :
- -12 <u><</u> x <u><</u> 13
The volume of the fourth box is of 410.1 cubic inches.
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The volume of a rectangular prism is given by the <u>base area multiplied by the height,</u> that is:

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- For the first three boxes, the height is constant at 9 inches.
- At the base, the <u>edge length is multiplied by 1.5</u> each time, as
, thus, for the fourth box, the edge length, in inches, will be of 
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- Square base, of<u> length 6.75 inches</u>, thus:

- Height of <u>9 inches</u>, thus
and:

The volume of the fourth gift box will be of 410.1 cubic inches.
A similar problem is given at brainly.com/question/23756783
The answer to the question is 52