21,22,23 please with explain

21 Lexington Company sells product 1976NLC for $20 per unit. The cost of one unit of 1976NLC is $15, and the replacement cost is $17. The estimated cost to dispose of a unit is $4, and the normal profit is 40% of selling price. At what amount per unit should product 1976NLC be reported, applying lower-of-cost-or-market? 22 Given the acquisition cost of product Z is $27, the net realizable value for product Z is $24, the normal profit for product Z is $2, and the market value (replacement cost) for product Z is $23, what is the proper per unit inventory value for product Z applying LCM? 23 Ryan Distribution Co. has determined its December 31, 2020 inventory on a FIFO basis at $965,000. Information pertaining to that inventory follows. Estimated selling price $1,020,000 Estimated cost of disposal 40,000 Normal profit margin 120,000 Current replacement cost 900,000 Ryan records losses that result from applying the lower-of-cost-or- market rule. At December 31, 2020, the loss that Ryan should recognize is