solve c+ 0.07c when c is 25

The expression c+ 0.07ccan be used to find the total cost of an item with 7% sales tax, where c is the pre tax cost of the item. Use the expression to find the total cost of an item whose pre tax cost is $25.
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???????????? "item" ?????????? yu meen STUF or THANG or SUMTHUN... y=x+0.07x...y=1.07x... EVALUATE y at x=25...y=1.07*25=26.75
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