Answer:
Problem A: 12%
Problem B: 20%
Problem C: 49%
Explanation:
Problem A
Total of 58 and over: 50
In Favor: 6
6 / 50
0.12 * 100
12%
Answer: 12%
Problem B
Total of 18-37: 50
Oppose: 10
10 / 50
0.2 * 100
20%
Answer: 20%
Problem C
Total number of people: 150
Total people that are in favor: 73
73 / 150
0.487 * 100
49%
Answer: 49%