edward and julia are married and have two children under age 18. no family member has minimum essential coverage for any month during 2020, and no family member qualifies for an exemption. for 2020, their household income is $73,300 and their tax return filing threshold amount is $24,800. assuming the annual national average premium for bronze level coverage for 2020 is $6,741, edward and julia's shared responsibility payment for 2020 is what amount?