Given that 
, we have for 
the Taylor series expansion about 0 as
Replace
with 
, so that the series is equivalent to
and notice that
Recall that for
, we have
which means
Replace
and notice that
Recall that for
which means
One afternoon, Supreme sub shop sells 15 subs in 45 minutes. If the shop continues to sell subs at the same rate, about how many
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