Whats the answer to this the product of 6 and a number p is 24

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

This is about circle theorems. someone asap : (

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)