Increasing returns to scale, QUESTION THREE. a Merciful spend all her income on Biniani (B) and clother (C) Her preference can be represented by the utility function U(B₁ c) = 4/n (B) + 610 (c) Jo Compute the marginal rate of substitution Biani for dather (Binani is on the vertical axis). Is the Mes Increasing or decreasing in B²? How do we interpret this​