Question 1064754
x, hours mowing lawns
y, hours at clothing store



Taking the description making the three inequalities and simplifying the system gives a system  {{{system(y>=-(6/5)x+35,y<=-x+35,y>=10)}}}.


If you graph this system, you will find a long narrow region for the solution set.


Just the reference lines without filling in for any inequalities:
{{{graph(400,400,-2,36,-2,36,-6x/5+35,-x+35,10)}}}
The long narrow triangle and its interior is your solution region.