Simplify the expression (1/2y^5)^3(2y^2)^4

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

If g^-1(x) is the inverse of g (x) which statement must be true

Iam at home. /: i am playing video games. translate the following statement into symbolic form.