kak bantu dong,dikumpulin sekarang

a. v=k[A][B]²
b.
[tex] \frac{v2}{v1} = \frac{t2}{t1} = \frac{k(a1)( {b1}^{2}) }{k(a2)( {b2}^{2}) } \\ \frac{t2}{80} = \frac{0.3 \times {0.3}^{2} }{0.1 \times {0.1}^{2} } \\ t2 = 27 \times 80 = 2160[/tex]