Based on the information given the amount of loss that Sherri deduct in 2021 is $3,000.
Since he had both short-term loss and long-term loss the amount of loss that is deductible is $3,000 of capital loss. ($1,500 each for married filing separately).
Both the short-term loss and the long-term loss are combined up to the limit of the amount of $3,000 and the capital loss in excess of the amount of $3,000 are carried forward to following year.
Inconclusion the amount of loss that Sherri deduct in 2021 is $3,000.
Learn more about short-term loss and long-term loss here:https://brainly.com/question/25117603
