Jacob and Rachel are married and file a joint return for 2021. Their AGI is $37,600 and their taxable income is $12,500. They live in lowa for the entire year. They claim four dependents; Joseph - their 18 year old son; Benjamin - their 15 year old son; Levi - their 12 year old son; and Rebekkah - Jacob's 82 year old mother. What is the amount of their non-refundable Credit for Other Dependents on line 19 of their Form 1040? $1,000 $1,500 O $1,250 O $500 O $0 Jack has calculated his income tax (Line 16) for 2021 at $1,800. Jack is entitled to a $2,400 non- refundable credit, a $1,500 business credit, and a $600 refundable credit. In addition, Jack had $2,300 of federal income taxes withheld from his salary. What is Jack's refund for the year? $1,100 $2,600 $2,900 O $5,000 $4,400