Question 788968
Let b = how many blueberry bushes
Let p = how many peach trees


Accounting for cost to be less than $500,
{{{2.50b+5.50p<=500}}}
Maybe you could simplify, although more than one way to choose.
Divide by 2.5 gives {{{b+2.2p<=200}}}


Choose you vertical and horizontal axes for each of the two variables, b and p.