For 9x + 25 = 88, deena wrote the situation "i bought some shirts at the store for $9 each and received a $25 discount. my total bill was $88. how many shirts did i buy? "

a.) what mistake did deena make?

b.) rewrite the equation to match deena's situation.

c.) how could you rewrite the situation to make it fit the equation?

A.Deena did +25 instead of - 25, since 88 is the bill and 9x was the original cost, minus the discount of 25. 
B. 9X-25= 88
C." I bought some shirts at the store for $9 each and had to pay $25  worth of taxes. My total bill was $88. "
Reason for C, because taxes would be an addition to the to the price of the 9 pants, and that is what is shown.