Выберите одночлены:
\( -\frac{3}{8}t^{\,5}\)
\( \frac{2}{7}s^{\,0}\)
\( 3{,}8\frac{4}{t^{\,9}}\)
\( 2{,}1s+\frac{5}{7}s^{\,4}-s^{\,3}\)
\( 8{,}9\)