K is the constant in a table or equation. like k=x•y
If you turn 1/4 into a decimal, which is 0.25, all you have to do then is 0.25 + 8 x 8 + 6 + 8 = 78.25 Hope this helps!!
2.645751311 (I did it on a scientific calculator, so sorry if they wanted you to show the work..)
