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
Divide by 622.
The factors of 622 are 1, 2, 311, 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
The product is 1285
40.1562
It is 1,300