Find the quotient:

$\dfrac{-16}{35} \div \dfrac{15}{14}$

Find the quotient:

$\dfrac{-12}{7} \div (-16)$

Name the property of multiplication illustrated by the following statement:

$\dfrac{-8}{9} \times \dfrac{-13}{7} = \dfrac{-13}{7} \times \dfrac{-8}{9}$

Name the property of multiplication illustrated by the following statement:

$\left(\dfrac{-3}{4} \times \dfrac{5}{7}\right) \times \dfrac{-9}{11} = \dfrac{-3}{4} \times \left(\dfrac{5}{7} \times \dfrac{-9}{11}\right)$