You know the following information about the Taylor National Bank

Provision for Loan Losses ($100)

Income Taxes ($140)

Non Interest Income $500

Dividends ($60)

Securities Gains (Losses) ($50)

Interest Income $1500

Non Interest Expense $750

Interest Expenses $750

Given this information

a, what is this firm's Net Interest Income?($750)

b, what is this firm's Net Non Interest Income?(($250))

c, What is this firm's Net Operating Income or Net Income Before Extraordinary Income?($400)

d, what is this firm's Net Income?($210)

e, what is this firm's Increase in Undivided Profits?($150)

f, what is this firm's Total Revenues? ($2000)

I know answer but I would like an explanation. thanks