Lingearns10%commissionasasalesperson.Shesoldacarouselhorsethatcost$407.90.HowmuchcommissiondidLingearn?

To calculate Ling's commission, we first need to find what 10% of $407.90 is:

10% of $407.90 = 0.10 * $407.90 = $40.79

Therefore, Ling earned $40.79 in commission for selling the carousel horse.