Please help will rate and give points if a correct worked out answer is given
The rogue starship Galaxa is being chased by the battle-cruiser Millenia. TheMillenia is catching up to the Galaxa at a rate of 0.650c when the captain of the Millenia decides it is time to fire a missile. First the captain shines a laser range finder to determine the distance to the Galaxa and then he fires a missile that is moving at a speed of 0.435c with respect to the Millenia. What speed does the Galaxa measure for the missile as they both approach the starship? Give answer as multiple of c.