This may be too basic a question for this site, in which case I'm sure you'll all let me know.
Here is my problem: I have a job worth $\$$40,000 composed of 6 units of x and 3 units of y. I'm trying to determine how much to charge for x and y, where y is worth 30% of x.
I'd really like to be able to solve these sorts of questions myself in the future, but my recollection of algebra is far too hazy.
Could you work it out longhand for me so I can see how to do it?
Preemptive edit: this is not a school question. I'm putting together a SOW for a video job and the 30%(y) is the cost of a French translated version of the video, which is about 30% of the effort since only the audio track changes.