How would you perform the following multistep synthesis ?

How would you perform the following multistep synthesis ?

How would you perform the following multistep synthesis ? Benzene to 1,3,5-trimethyl benzene Step 1 HBr, Step 2 Sodium ethoxide, Ethanol, Step 3 Thionyl Chloride, Step 4 KOH Step 1 NaOH, Step 2 Water, Sulfuric acid, Mercury sulfate Step 1 HNO3/H2SO4, Step 2 Sn, HCl followed by NaOH, Step 3 3moles CH3Br, AICI3 b) Step 4 NaNO2, H2SO4, Step 5 Ethanol Step 1 3moles CH3B, AIC13, Step2 HNO3/H2SO4, Step 3 NVH2, Step 4 NaNO2, H2SO4, Step 5 Ethanol, 3Moles CH3Br, AICI3 Step 1 PTSA Step 2 NacN, Step 3 HCI, Step 4 Hydroboration, Oxidation. Step 1 Sulfuric acid, Step 2 HBr, Step 3 NaOH