Book Maths Puzzle Area and Volume

A picture 9 inches by 12 inches is surrounded by a frame of uniform width. If the area of the frame exceeds that area of the picture by 124 square inches, find the width of the fr

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Book Other Question

solve each quardatic equation writtin in vertex form.

x sqaure which is x^2 - 121 = 0
Solve
3x^2=16