Can you please tell me if these statements are True, False, or Uncertain and provide an explanation with a graph or math equation if needed.

. The demand curve, which is a downward-sloping straight line, crosses the supply curve, which is an upward-sloping straight line. If a tax is introduced where sellers must pay a tax of LE2 per unit sold, then the equilibrium price paid by demanders will rise by more than LE1. . Mirna's preference is represented by the utility function U(X, if) = XY+ 12X + 31'. If Px= $2; Py = $2, commodities X and Y are complements. . Assume that a consumer has quasilinear preferences, and maximizes utility according to the function U = X + ln(Y), while facing the prices Px = $4 and FY = $1. The income elasticity of commodity X shows that it is an inferior commodity. . If every pair of commodity bundle can be (pairwise) ranked, then preferences must be transitive and complete. . Unfortunately, when the government imposes a price ceiling on real estate, the market suffers from shortage