" (2) Simblify: "(3^(-7)times10^(-7)times125)/(5^(-5)times6^(-6))

(3^(-5)times10^(-5)times125)/(5^(-7)times6^(-5))

3^(-5)times10^(-4)times(5^(4))/(5^(2))times6^(-5)=

(6^(3)times7^(4)times8^(5))/(4^(3)times9^(2)times16)

Simplify -(2)/(3)times5(1)/(2)times2times7(5)/(6)times(9)/(11)

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

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

" (f) (5^(6)times a^(7))/(5^(2)times a^(3)times(10)^(0))

Simplify. (i) (25 xx t^(-4))/(5^3 xx 10 xx t^(-8)) (t != 0) (ii) (3^(-5) xx 10^(-5) xx 125)/(5^(-7) xx 6^(-5))

Simplify and express the result in power notation with positive exponent: (a) "7^(5)times7^(3)-:7^(-4), (b) 6^(11)times6^(3)times6^(-5)