Holly will have to buy the frame for $81.00
The frame is going to go around the painting which means that the frame will be the same size as the perimeter of the painting.
The perimeter of a square is:
= ( 2 x length) + ( 2 x Width)
All the sides of a square are the same which means that the length and width are the same.
The area is:
Area = Length x Width
Because the length and width are the same, you can simply find the square root of the area to find the length of one side:
= √225
= 15 inches
The perimeter is therefore:
= ( 2 x length) + ( 2 x Width)
= (2 x 15) + (2 x 15)
= 60 inches
Holly will therefore spend:
= Cost per inch x number of inches needed
= 1.35 x 60
= $81
Holly will therefore spend $81 on the frame
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