Which of the following polynomials are quadratic? A.) xy+ya+x B.)xy^2 C.)8x^2

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?

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

Is it greater than or less than7*3_9*2