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The width of a rectangle painting is 3 in. more than twice the height. A frame that is 2.5 in. wide goes around the painting.

Awrite an expression for the combined area of the painting and frame.
Buse the expression to find the combined area when the height of the painting is 12 in.
Cuse the expression to find the combined area when the height of the the painting is 15 in.

Verified Answer :

a.
\(A=(2h+8)(h+5)\)

b.
If h = 12
\(A=(24+8)(12+5)=(32)(17)=544\)

c.
If h = 15
\(A=(30+8)(15+5)=(38)(20)=760\)

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