What number is 100,000 greater than 99,999,999? In which places did the digits change?

write 10 multiples of 9

What number is 100,000 greater than 99,999,999? it just means that u hv to add 100,000 to 99,999,999 which is 10099999

11
99999999
+ 100000
-----------
10099999

In which places did the digits change?

This one you figure it out...i am not telling u everything

what is 4a+3-9=24

You can simplify the lefthand side as
4a - 6 = 24
Now add 6 to both sides to get eliminate the term on the lefthand side, then divide by the coefficient of a to finish it.