Which model represents 2 x 0.9?

The model which represents 2 x 0.9 is the second model.

The expression given is multiplicative.

As such, the 2 × 0.9 can be represented by model B in which case;

0.9 is represented twice and upon aggregation of the sum;

We can then evaluate the expression; 2 × 0.9 to be 1.8.

Read more:

link

Step-by-step explanation:

The model needs to show 1.8 because 2 x 0.9 = 1.8. Model B is the only model that shows this.

Hope this helps

a

step-by-step explanation:

b, i believe, but not sure.