Which of the following are in descending order of their value ?

Which of the following are in descending order of their value ?

Solve: 7(1)/(2) – [ 2(1)/(4) ÷ 1(1)/(4) – (1)/(2)(1(1)/(2) – (1)/(3) – (1)/(6))

Solve: 7(1)/(2) – [ 2(1)/(4) ÷ 1(1)/(4) – (1)/(2)(1(1)/(2) – (1)/(3) – (1)/(6)) ] =?

Evalute:frac(2.39)^2 – (1.61)^22.39 – 1.61

Evalute:frac(2.39)^2 – (1.61)^22.39 – 1.61