Problem $28-21($LO$.6)$

Wade filed his Federal income tax return on time but did not remit the balance due.

Enter Wade's failure to pay penalty in each of the following cases:

a$.$ Four months late, $$3,000$ additional tax due. $fill in the blank $1$

b$.$ Ten months late, $$4,000$ additional tax due. $fill in the blank $2$

c$.$ Five years late, $$5,000$ additional tax due. $fill in the blank $3$