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If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Why do interests rates on loans to be lower in a weak economy than in a strong one

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.