Provide an appropriate response.
A small office manager wants to buy new cordless phones for each of the office's 11 desks. Each phone costs $89.99. Estimate the total cost by using numbers with one nonzero digit. Find the exact amount.
A. $900; $898.98
B. $900; $989.89
C. $800; $989.89
D. $800; $989.99
Answer: B
Mathematics
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