7 x 4 = 28
Because....4 x 7 = 28 !
54
7.
2.8
37
35
37
37
37. The difference between two consecutive numbers goes on increasing. 7-2=5; 13-7=6; 20-13=7; 28-20=8; 37-28=9...and so on.
37, this sequence counts up from 5 the difference between 2 and 7. the difference between 20 and 28 is 8 making the next number 9, and 28 and 9 = 37.
3 * 7 = 28 or 28 / 7 = 3
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer. 36*7/9 = 4*7 = 28.