At the end of the directions, it talks about parallel, perpendicular, or neither. When x=y, the lines are perpendicular and have infinite solutions. When they are parallel, there is no solution. You'll get an answer like 4=5. Neither means there is only one answer, and you will get one x and one y.
X equals weight of permit fish
x + 10X = 132
11x = 132
x= 12
permit fish= 12
tarpon=120
C, since the radius is 10 multiply by 2 and 100 x 3.14 is 314