Solve the inequality and graph the solutions. 1.1 less than equal to 1.21

If it's just 1.1 <= 1.21 then its deemed true

But since there's no identified x I'll list 2 possible solutions.

1) 1.1x ≤ 1.21

Divide 1.1 from both sides.

x ≤  1.1

I don't know how to graph on a computer, sorry.

2) 1.1 ≤ 1.21x

Divide 1.21 from both sides.

x ≥ 0.91 (Approx.)

Again, don't know how to graph on a computer.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this