While I think the OP should make more of an effort at answering this I am going to suggest a route because I think this is an interesting challenge - if a little unreal. In the real world of preparative organic chemistry you would not be starting from benzene. There are many possible approaches to this, but here is mine
Step 1 - carbamoylation of benzene with dimethyl carbamoyl chloride/TMSOTf/Zn(OTf)2 as described here
Step 2 - directed lithiation of the dimethylbenzamide with sBuLi/TMEDA followed by quenching with the commercially available propylene oxide to install the C3 sidechain at the alcohol level.
Step 3 - oxidation with Dess-Martin periodinane to give the benzyl methyl ketone
Step 4 - nitration under standard HNO3/H2SO4 conditions as here should give the desired 1,2,5 substitution pattern as the major component.
Step 5 - amide hydrolysis under strong acid conditions with cHCl. I have chosen this over basic hydrolysis as think the formation of the anion of the starting benzyl methyl ketone activated by 2 EWGs is likely to be an unwanted complication.