Answer:
Explanation:
For your first question,
Total percentage of people cheering for visiting team = 45%
Total percentage of people cheering for home team = 55%
Total number of people cheering = 1200
Therefore, the number of people cheering for visiting team = 45% of 1200
 = 
 × 1200
 × 1200
 = 45 × 12
 = 540 people
For your second question,
Total number of questions = 75
Total percentage of the number of questions he completed = 36%
Percentage of the amount of questions left = 100 - 36 = 64%
Therefore, the number of questions left to complete = 64% of 75
 = 
 × 75
 × 75
 = 
 × 15
 × 15
 = 
 × 3
 × 3
 = 16 × 3
 = 48 questions are left