So if your intentions of ranking up are solely limited to business marketing then you can simply do what @Charles-Tim have suggested you to do i.e. buy copper membership of the forum which will give you certain advantages like you can post images immediately without having to wait to rank upto junior rank with 30 activity and 1 merit.

But if you want to rank up as member to this community then you need to contribute with what you know related to bitcoin,share your thoughts and exchange of knowledge here over the forum.This is best way as your knowledge will also grow but don't be in haste as everything will take time.Regular learning and forum participation will help you achieve your target but if your goals are just business then go the other way around.

But what business you want to promote over the forum with high rank? You will also need trust and feedback for business promotion so you can check out this thread for your help:

LoyceV's Beginners guide to correct use of the Trust system

But do have a look at the forum rules with links posted above to have an idea about how to post on the forum without any violations of rules.