Question

Please help asap 30 pts

Answer 1

C: 12/35a^3

2 multiplied by 6 is 12.
5 multiplied by 7 is 35.
a^1+a^2=a^3.

Answer 2

$\dfrac{2}{5a}\cdot\dfrac{6}{7a^2}=\dfrac{2\cdot6}{5a\cdot7a^2}=\dfrac{12}{(5\cdot7)(a\cdot a^2)}=\dfrac{12}{35a^3}$
$\boxed{Answer:\ C.\ \dfrac{12}{35a^3}}$
$Used:\ a^n\cdot a^m=a^{n+m}$