There is $100 it goes up 10% how much is it

Its 110 cuz it goes up 10% if it was 20% it would be 120

To find this is asking what is 10% of 100. Remember that in word problems of always means *(multiply). So that means that we need to multiply 100 times 10%, or
.10. So 100 times .10 is 10. If 10 is 10% of 100, then you need to add the extra 10% to the original number. So add 10 + 100. Now the answer would be $110. Hope this helps

The correct answer is $90