Answer:
170
The ones period consists of the ones, tens, and hundreds digits.
28 ft per min = 0.512064 km per hour
40 new accounts for: 100 customer calls
10,000 new accounts for: x customer calls.
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40 : 10,000 = 100 : x
x = (100 · 10,000 ) : 40 = 25,000
Answer: 25,000 customer calls were made.
