Mrs. Jоhnsоn presents tо the county heаlth depаrtment for treаtment of chlamydia. Doxycycline 100mg PO BID for 7 days is ordered. The health department pharmacy has 25 mg tablets available to dispense to Mrs. Johnson. As the public health nurse assisting her in her medication adherence, how many tablets will you instruct Mrs. Johnson to take with each dose?