Is this positive correlation , negative correlation or no correlation?

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

If a || b and e || f , what if the value of y ?