Nathan has a budget of $18,000 dollars to spend on tracking devices to study moose. A radio tracker costs $750 and a GPS tracker costs
$1500. Nathan wants to buy at least 7 radio trackers and less than 5
GPS trackers.
The following system of inequalities represents this situation, where
x is the number of radio trackers and y is the number of GPS trackers.
x 7
y<5
750x + 1500y = 18000
Which yellow shaded region corresponds to Nathan's possible
choices?