Paxton, a summer camp counselor, has a budget of $300 to spend on caps and T- shirts

Paxton, a summer camp counselor, has a budget of $300 to spend on caps and T- shirts for a summer camp.
What equation can Paxton use to determine the number of caps and T-shirts he car
order for $3002
If Paxton sketched a graph of the linear equation, would every point on the graph
represent a possible solution?
Explain.