Tolong jawab!! 9-10 please! :)

-36/60+3 15/60-2 20/60=1 31/60
-12×10=120
1/2×6×13=36+120=156

9. [tex] \frac{3}{5} + 3 \frac{1}{4} - 2 \frac{1}{3} = n[/tex]
    [tex] \frac{36}{60} + 3 \frac{15}{60} - 2 \frac{20}{60} = n[/tex]
    [tex]3 \frac{51}{60} - 2 \frac{20}{60} = 1 \frac{31}{60} [/tex]

10. L = [tex] \frac{1}{2} [/tex] x (sj+sj) x t
             [tex] \frac{1}{2} [/tex] x (10+16) x 12
             26 x 6 =156 cm²

semoga membantuuu