1 Evaluate the expression125^-4/3

2 The expression (3a⁴b³c⁵⁾²(2a²b⁵c)3 equals na^rb^sc^t Where N, the leading coefficient is:

and r, the exponent of a is;

and s, the exponent of b is:

and finally t, the exponent of c is:

3The Expression (x⁴y²)⁵(xy⁵) ^-2

x⁴y²

Equals x^ely^d where

the exponent e of x is_______, the exponent d of y is____