Convert 6 1/2 into a percent

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual