Help needed please:

Ashlifiles her current year tax return on July 13 of the following year.She pays the amount due without requesting an extension. The tax shown on her return is $35,000.Her current year wage withholding amounts to $22,000. Ashli pays no estimated taxes and claims no tax credits on her current year return.

Requirements

a.	What penalties will the IRS likely impose on Ashli

(ignoring the penalty for underpayment of estimated taxes)? Assume Ashli

committed no fraud.
b.	On what dollar amount, and for how many days, will Ashli

owe interest