Which expression is equivalent to (2mn)4/6m^-3n^-2

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

Which expression is equivalent to 5r6141 2r+st6

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?