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Your local gas stations are having a price war. During the past 7 days they have lowered the price of regular gas by $0.02. Define a variable. Then write and solve an equation to find the total change in gas price. Show your work.

Answer :

Let t be the total reduction. Then ... 

t = daily change * number of days 

t = 7 * 0.02 

t = $0.14! 

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