2. A trader sells pistachios at $10/kg, almonds at $12/kg and peanuts at $8/kg. He prepares a mixture for 100 packages of 1 kg which he sells for $9 each. The mixture should earn him the same amount as if he sold the pistachios, almonds and peanuts separately. a) Give the composition of a package. b) Give the composition of a package that would contain twice as many peanuts as pistachios c) Can a package contain four times more peanuts than pistachios and almonds combined