What multiplication fact can be found by using the arrays for 2x9 and 5x9

2 times 4 would be represented by 2 rows of 4 like 5 times 9 would be so to answer your question you would draw it out with 2 rows of 9 and 5 rows of 9... 

               so the answer would be solved like this: (2+5) times 9 = 7 times
                 9 = 63 

                                                                                               

18, and 45 is the answers to those too multiple questions