Roofing INC. sells roof shingles and supplies in Madrid. They're considering entering the Barcelona market. The estimated demand for both markets at different price points is given below:

Price

Estimated demand Madrid

Estimated demand Barcelona

$0$

$550$

$540$

$5$

$500$

$440$

$10$

$450$

$340$

$15$

$400$

$240$

$20$

$350$

$140$

$25$

$300$

$40$

$30$

$250$

$0$

$35$

$200$

$0$

$40$

$150$

$0$

$45$

$100$

$0$

$50$

$50$

$0$

$55$

$0$

$0$

Fixed Costs: $5$ million

Variable Costs: $5$ per square yard

Additional Shipping Costs to Barcelona: $2$ per square yard

If you want to maximize profits, what should be the selling price per square yard? $($Answer with the correct unit.$)$

a$.35$

b$.15$

c$.10$

d$.20$

e$.30$

f$.25$