Which expression is represented by this model? 23×12=26

13×34=312

13×12=16

12×26=212
Circle divided into 3 equal parts. One of those parts is divided into 4 equal parts and 3 of those parts are shaded.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post