### Polynomials and Decimals Simply

How do you 8) Simplify ((-8a^-1b^-3)/(2a^3b))^-2 9) Simplify (3x^4)^2(4x^-5)^-1 divided by 12x^-6 10) Simplify (5x^2y^4)^2(-3x^-4y^-1)^3 11) Simplify -24a^3b^5 + 36a^2b^2 - 12ab^2 divided by -4ab 12) How do you Write these in standard (decimal) notation: a) 2.45 X 10^3 b) 3.34