Exercise 13-19 (Algorithmic) (LO. 4) In 2021, Ivanna, who has three children under age 13, worked full-time while her spouse, Sergio, was attending college for nine months during the year. Ivanna earned $67,500 and incurred $7,275 of child care expenses. Click here to access the percentage chart to us for this problem. Determine Ivanna and Sergio's child and dependent care credit. $1 1,820 x