Table 1: Demand for athletic shoes Points Price Quantity A $10 1,200 B $20 2,000 C $30 3,500 D $40 1,800 $50 1,700 $60 1,500 - - I A T MC $70 2,200 $80 1,600 $90 1,300 $100 1,900 Table 2: Supply for sunglasses Points Price Quantity K $4 1,000 $8 1,100 $16 1,400 $32 1,600 $64 3,200 $128 1,000 $256 1,400