Question 886520
I will do the first problem and not the second problem.  The first problem is interesting but something seems wrong with it.  The second problem is a Travel rate,time,distance kind and belongs in a different request.


Let p = how much vocabulary before the increase produced by foreign language classes.   Taking foreign languages produced {{{1.6*p}}}, the count of vocabulary.  The typical student who took no foreign language knew {{{1.6p-3250}}} words.  If you expect a clear value, then the problem description is deficient.