solve this `(3^-6xx10^-6xx125)/(5^-7xx6^-5)`

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: (i) (12^4xx9^3xx4)/(6^3xx8^2xx27) (ii) (25xx5^2xxt^8)/(10^3xxt^4) (iii) (3^5xx10^5xx25)/(5^7xx6^5)

Simplify : a. [(3^(3))xx3^(4)]-:3^(4) b. 18^(6)-:3^(12) c. [(5^(6))^(9)xx(5^(15))^(5)]-[(5^(13))^(5)xx(5^(4))^(16)] d. (3^(5)xx10^(5)xx25)-:(5^(7)xx6^(5)) e. ((2)/(b))^(18)xxb^(12)xx(3^(4))^(3) f. [(2^(4))^(2)xx2^(12)]-:4^(2) g. 12^(8)-:3^(6) h. [(7^(7))^(8)xx(7^(9))^(5)]-[(7^(11))^(6)xx(7^(7))^(5)] i. (25^(2)xxp^(4)xxq^(8))-:(5^(3)xxp^(4)xxq^(7)) j. ((a)/(3))^(24)xx2^(8)xx(3^(6))^(4)

Simplify and express each of the following as a rational number : (3^(5) xx 25 xx 10 ^(5))/( 5^(7) xx 6^(5))

Multiply : 6.5xx10

(-1)xx(-5)xx(-4)xx(-6)

(-1)xx(-5)xx(-4)xx(-6)

What is the value of (5.0 xx 10^(-6))(5.0xx10^(-8)) with due regards to significant figures ?

Evaluate the following : (-5)xx6xx(-3)xx(-7) .

Verify the distributive law of multiplication over addition : (-16)xx{(-5)+(-6)}={(-16)xx(-5)}+{(-16)xx(-6)} .