9) 2$$\frac{7}{25} \cdot$$ 2$$\frac{2}{5} + 5$$\frac{7}{25} \cdot$$ 3 = $$\frac{57}{25} \cdot \frac{12}{5} + \frac{132}{25} \cdot$$ 3 = $$\frac{684}{125} + \frac{396}{25}$$ = $$\frac{684 + 1980}{125}$$ = $$\frac{2664}{125}$$ = 21$$\frac{39}{125}$$
Ответ: 21$$\frac{39}{125}$$