Answer:
operating cash flow = $21307.5 
Explanation:
given data 
sales = $50,000
costs = $23,000
depreciation expense = $2,250
interest expense = $2,000
tax rate = 23 percent
solution
we get here operating cash flow for that 
EBIT  = Sales - Costs - Depreciation   .............1
EBIT  = $50,000 - $23,000 - $2,250
EBIT  
= $24750
and taxes is 
taxes = tax rate × EBIT    ..........2
taxes = 0.23 × $24750 
taxes = $5692.5
so here operating cash flow that is 
operating cash flow = EBIT + Depreciation - Taxes   ..........3
operating cash flow = $24750 + $2,250 - $5692.5 
operating cash flow = $21307.5