Answer: Price is $7 when sale is 5000 and $6 when sale is 7,500 units. 
Step-by-step explanation: 

George will breakeven when his price is just sufficient to cost the total cost. 

 
If George sells 50% more, then his sales is 7,500 units. 

George will breakeven when his price is just sufficient to cost the total cost. 

When sales is 5000 units price is $7. When sales is 7,500 units price is $6.