[tex]29) \\
a)~~~4 \times 3,5 + 5 \times 6 = 14+30 = \boxed{44\; Lei} \\ \\
b)~~~10 \times 3,5 = 35\; Lei ~~\ \textless \ ~~45\; Lei ~~~\Longrightarrow ~~~ \boxed{Da.~ Se~ poate.} \\ \\
30) \\
a)~~~ 2+1+1+2+5+3+2 =\boxed{16\; Studenti~in~grupa} \\
b)~~~ 2+5+3+2 =\boxed{12\; Studenti~cu~minim~nota~7} \\ \displaystyle
c) \\ \frac{4 \times 2+5 \times 1+6 \times 1+7 \times 2+8 \times 2+9 \times 3 + 10 \times 2}{16} = \\ \\
=\frac{8+5+6+14+16+27+20}{16} = \frac{96}{16} = \boxed{media~6}[/tex]
