What are the three styles of business writing?

COGS commonly refers to what in business?

R.S.V.P at the end of an invitation means

What does KPI refer to in regards to business reporting?

________ are necessary aspects of organizations of any significant size.

Is this sentence correct? The dog chased it's tail.

I have ___ all that you have asked of me.

What does COO stand for?

She ___ busy now.

I'm going to call ____ secretary to set up an appointment.

I work every day _______ Sundays.