Question

marshall has b buttons. he gives away 13 buttons. write an expression that shows the number of buttons marshall has left.

Explanation:

Step1: Identify initial and given away

Marshall starts with \( b \) buttons, gives away 13.

Step2: Formulate the expression

To find remaining buttons, subtract given away from initial: \( b - 13 \).

Answer:

\( b - 13 \)