Answer:
I do not like maths.
But, I believe the answer is equal to the number 31
Explanation:
Since three yellow dinosaurs are equal to nine, we can estimate that each yellow dinosaur has a value of 3. Since the blue and green dinosaurs added are equal to the number 28, all we have to do is add 3(from the yellow dinosaur) to 28, which is equal to the number 31.
let me know if it is wrong.
Goodbye.