1285 + 622 = 1907
622+285 = 907
4382
1285 plus 150 equals 2435, so add one more year for the year of 0 then it's 2436. There's your answer.
428.3333
The factors of 622 are 1, 2, 311, 622
Divide by 622.
The answer is 3992.19. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
1290
622
Half of 622 is 311. You can find this by dividing 622 by 2, which equals 311.
It is 1,300
40.1562