Engineeeer 1.
1) 26928643
2) 2695460
3) 4564622
4) 43645,7977
5) 3838016
6) 307416

2.
1) 160726
2) 3

3.
1) x-95=3,05
x=98,05
2) 6x+489=747
x=43
3) 5x=35
x=7

4.
1)
2: 22, 56, 124, 7000, 7008, 2502, 2520
3: 51, 7008, 2502, 2520
5: 7000, 2520
10: 7000, 2520

2)
2: 48, 256, 342, 8052, 980, 2536
3: 48, 342, 8052, 1005, 1101
5: 980, 1005
10: 980