Complete Question:
Mrs. Roberts plants tomatoes and radishes in the areas shown in the model below.


Which expression is equivalent to the sum of the two areas?
Answer:

Explanation:
Given
Represent the area of Tomato with A and area of Radish with B
So:


The sum of the two areas is therefore:

Substitute 35 for A and 28 for B


So, you either represent the model as:

or
