Answer :

Charlene will need [tex]286[/tex] square inches of wrapping paper.

To calculate the amount of wrapping paper needed, you need to find the surface area of the box.

  1. Surface Area of a Rectangular Prism: [tex]SA = 2lw + 2lh + 2wh[/tex]
  2. Substitute the given dimensions: [tex]SA = 2(7*5) + 2(7*9) + 2(5*9)[/tex]
  3. Calculate the total:  [tex]SA = 70 + 126 + 90 = 286[/tex] square inches

Therefore, Charlene will need [tex]286[/tex] square inches of wrapping paper.

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