Sue's Sushi placed two orders with its fish supplier. One order was for 13 pounds of salmon and 7 pounds of tuna; the order totaled $198. The other order was for 10 pounds of salmon and 5 pounds of tuna; this order totaled $150. What is the cost for one pound of salmon and one pound of tuna?
A.
$12 salmon; $6 tuna
B.
$8 salmon; $10 tuna
C.
$14 salmon; $4 tuna
D.
$9 salmon; $9 tuna