Respuesta :

Answer:

k-12

Step-by-step explanation:

k-12

k=# of cards yesterday

hope this helps!

If we write an expression using K for the number of cards left with Elsa then it will be = K- 12

What is an Expression ?

An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.

It is given that Elsa had K baseball cards

She gave away 12

Number of cards left with Elsa = K- 12

Therefore an expression using K for the number of cards left with Elsa then it will be = K- 12.

To know more about Expression

https://brainly.com/question/14083225

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