`-4/5times(5/7times-8/9)=(-4/5timesk)times-8/9` find k=

Evaluate a^(7)times b^(7)times c^(-4)times c^(5)times d^(9)

Evaluate: (-7) times 8 times (-5) times (-6)

Evaluate: (-3) times (-4) times (-5) times (-6) times 7

Verify and state the property used in each of the following. 9 times [(-8) times (-2)]=[9 times(-8)] times (-2)

Verify and state the property used in each of the following. 5 times(8 + 5)=(5 times8) + (5 times 5)

Show that (4)/(7)times((-2)/(8)+(3)/(4))=(4)/(7)times(-2)/(8)+(4)/(7)times(3)/(4)

Evaluate the following : (i) 2/5 times 3/7" (ii) " 3/5 times 8/9" (iii) " 7 times 1""2/3 .

Simplify: (-(7)/(9))times(3)/(8)times(-(4)/(7))

Evaluate: (-28+7) times (5-(-4)}

Simplify : 4/9 times 7/6 times 3/5 + 2/3 of 27.