The student Government wants to make a profit of at least $3000 from a magazines sales. At least $3000 simply means the profit should be $3000 and above.
There profit is $1.25 per magazine(m) subscription sold.
Their expenses are as follows
advertisement in school = $100
advertisement in community = $150
let
m = number of magazine sold
profit = selling price - cost price
selling price
Cost price
Therefore,