Given the following definitions: u = {1, 2, 3, 4, 5, 6, 7} a = {1, 2, 4, 5} b = {1, 3, 5, 7} how many elements are in a' ∪ b ?

If 3x+8=3x+8 is it one solution or no solution

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity