The difference between the prediction & the reality is 122-57 =65 votes.
Then over 122, the error was 65 votes &
the error ratio is 65/122 = 0.5327 ==>53.27% Or 53.3% (rounded)
The answer is 9,274$ what you do is
1. 8,000+3%=8,240
2. 8,240+3% of 8,240 and so on so forth so basically what you do is take 3% of the last sum and add that to get the new sum
I wish I can help but I’m bad at this sorry!
5x - 5 = x + 15
add 5 to both sides
5x = x + 20
subtract x from both sides
4x = 20
divide both sides by 4
x = 5
2- 54:81, 54/81
3- 0:101, 0/101
4- 13.5:43.8, 13.5/43.8