Sam's utility function is given by

U(x₁ , x₂) = 8.5 ln( x₁ ) + 5.7ln(x₂)

where x_i denotes the quantity consumed of good i, i =1, 2.

Enter below the value of Sam's marginal rate of substitution of good 2in terms of good 1 at the bundle (point) where x₁ = 9.9 and x₂ = 8.3.