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Bobby spent money from his piggy bank for his school lunches
each day. If he spent $2 each day for 15 days, which
expression represents how much more money had in his bank 15
days ago?
( 15) x ( -2)
( 15) x ( 2)
(
-15) + ( -15) + ( -15) + ( -15) + (-15)
( -2) x ( -15)
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