Answer:
34 % of the people must already planning to vote for Wanda
Step-by-step explanation:
Let there are 100 people in the town
It is given that Wanda will convince 25 % of people vote for her
Now let there are x people who are planning to vote Wanda
Then 100-x people are not planning to vote Wanda
She have to convince 0.25 ( 100-x) people to get 50% of the vote and to win
So
![0.25(100-x)+x=50](https://img.qammunity.org/2020/formulas/business/college/oofdqtd20cbcthkfnppgtwkdddlgkkuucy.png)
![25+0.75x=50](https://img.qammunity.org/2020/formulas/business/college/69s1nklkw4ooq025odz2d2c7xekwacxyzo.png)
x = 34
So 34 % of the people must already planning to vote for Wanda