Answer and explanation:
Given : Expression
or 2b.
To find : Create a model to show expression ?
Solution :
or 2b
Step 1 - First we create a model of b.
Ste 2 - The expression 2(b) tells us that we have 2 of the (b)’s.
Create a model that shows 2 groups of (b).
Step 3 - Count b’s i.e. 2b's
Step 4 - We grouped together the 2’s.
Step 5 - Write the expression as

Refer the attached figure below.