Question 1170630
Not "What is the amount" but "What is the PRICE each of the marker and the pencil?"



x for price of a pencil
y for price of a marker


{{{system(4y+3p<=250,y-x>30)}}}


{{{system(4y<=250-3x,y>x+30)}}}


{{{system(y<=-3x/4+250/4,y>x+30)}}}


{{{system(y<=-3x/4+62&1/2,y>x+30)}}}------note also, only nonzero values for x and y are allowed.  No a unique solution.