Muddahudda

While there are a lot of formula, they are pretty much all ’plug and chug’.  That is, memorise the formula and then plug in the input values given to you in the question.
Lack of maths background may mean that it takes you longer to work through some things and understand the relationships.  But its not going to prevent you from getting the charter if you want it bad enough.  It just might require a bit more work.
Goodluck.