`{:("Quantity A","Quantity B"),("The product of 12 and an even","The sum of the greatest four"),("prime number","factors of 12"):}`

{:("Quantity A","Quantity B"),(x,12):}

{:("Quantity A","Quantity B"),("The perimeter of triangle ABC",12):}

{:("Quantity A","Quantity B"),("The number of distinct prime","The number of distinct prime"),("factors of 40","factors of 50"):}

{:("Quantity A","Quantity B"),(sqrt(30)xxsqrt5,12):}

4x-12gex+9 {:("Quantity A","Quantity B"),(x,6):}

x^(2)-12x+36=0 {:("Quantity A","Quantity B"),(x,6):}

x=20, y=32 and z=12 {:("Quantity A","Quantity B"),("The remainder when x is","The remainder when y is "),("divided by z","divided by z"):}

{:("Quantity A","Quantity B"),("the sum of the",13),("consecutive integer",),("from - 12 to 13",):}