Not too formulaic I hope

Unless you do maths, don’t bother

Very very unique which I applaud- way too hard for me to decode the cryptics as well as recognise all of the formulae- valiant effort

Disapointing because they are not really 'connections'. Even if you get the cryptics you'd be trying to connect the 'Cs' for example (also as there are two clues for 'C' there is no unique solution).

Thanks for your feedback, I didn't think this would be to everyone's taste. It would be great if an actual mathematician came across this on (I am not one).
"299,792,458 m/s =", so "speed of light =" or "c =", the = sign makes it distinct from Head of MI6, which is just "c" so making the solution is unique. All the solutions are valid formulas with the right number and position of operators if you write them out.