How do you convert 89" to meters?

How is this equation completed? i cannot find any examples in the book.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.

Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?