2. At the mall, Leona bought a T-shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost? (a) What is the unknown information? (b) Let x represent the unknown information.

2. At the mall, Leona bought a T-shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost?

(a) What is the unknown information?
(b) Let x represent the unknown information. Write an addition equation that models the problem
(c) Solve the equation.
(d) Answer the question

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2. At the mall, Leona bought a T-shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost? (a) What is the unknown information? (b) Let x represent …

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