3. At the mall, Leona bought a T-shirt and a book for a total of $23. The book costs $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.
Answer:

Respuesta :

Answer:

$11

Step-by-step explanation:

a) How much the T-shirt costs

b) 12+x=23

c)23-12

d) $11