Plz again missing homework another question

Which value of c would make he following expression completely factored? 8x+cy

The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s

What is the y-intercept of the line given by the equation