Respuesta :

For the first it would be 7*3+5
Second would be either 1*3+2 or 1*2+3
Im still looking at the other two
1st
3 x 7 + 5 = 21 + 5 = 26

2nd
3 x 2 - 1 = 6 - 1 = 5

3rd
8 x 6 - 2^2 = 48 - 4 = 44

4th
4 x 9 + 5^2 = 36 + 25 = 61

hope it helps