Answer:
63 new house have been sold this year.
Explanation:
New houses have been sold this year is given by
➛ 81 × 7/9
➛ 9 × 7 .. ( 81 / 9 = 9 )
➛ 63
63 were sold
Multiply the total number of new houses by the fraction that were sold
81 * 7/9
Rewriting
81 /9 * 7
9 * 7
63
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