When you compare 649 and 645, you see that the first two digits are the same, and you compare until the last digit: in a way you need to do 3 comparisons, one for each digit (and after first and second you conclude that you still need to compare).
when you compare 645 and 738 you see immediately that the second number is bigger: the numbers differ already in the number of hundreds than they have, so you don't need to compare their tenths and one's, just the hundreds.
Answer:
his salary after three months would be 1300
Step-by-step explanation:
10 percent of 1000 is a hundred and multiply that by 3, it would equal 300 and add that to the 1000.
I think the answer is -280y^2+40y