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Mathematics
OpenStudy (anonymous):

Natural gas prices. In a recent year, the price of a gallon of natural gas was $1.88. The price dropped 2C, then rose 25C, and then dropped 43C. By how much did the price change during that period?

OpenStudy (anonymous):

dropped by 20C, i guess :P

OpenStudy (anonymous):

Simple addition and subtraction :]]] 1.88 - 0.02 ------- 1.86 +0.25 ------ 2.11 - 0.43 ------- 1.68 1.88-1.68 = 0.20 Dropped by 20 cents :]

OpenStudy (anonymous):

ohhh, C means cents??!?!?!?! i had no idea :P Now i feel like a complete idiot -_-

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