Demand for barbara streisand cds is equal to qs = ps-2.50 i1.80 pc0.60, where qs is the number of cds, ps is the price of a streisand cd, i is per capita income, and pc is the price of a karen carpenter cd. streisand and carpenter cds group of answer choices have diminishing returns to scale. are not as good as the original 8-track tapes. are complements. are substitutes. are inferior goods.

If u don't know the answer, always guess "c"

With reference to the solutions, following things may be noted1) homogeneous solutions comprises of single phase.2) heterogeneous solution comprises of more than one phase.3) in colloidal solution, solute is evenly distributed in solvent. in such system, it is difficult to separate solute and solvent.4) in suspension, there is an uneven distribution of solute in solvent. in such system, solute and solvent gets separated on standing long.    blood is a homogeneous and colloidal solution,salad dressing is a heterogeneous and suspension solution.