Consider the subspace W = {(a, b, c) : a − b − 2c = 0} . (You need not prove that W is a subspace; this is given.) For what value of n is Pn(R) isomorphic to W? Write down an isomorphism from Pn(R) to W for this value of n.

Ms. ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms. ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

2x minus y equals 6, x plus y equals negative 3

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square