Answer:
Step-by-step 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
                                                  = [tex]\frac{45}{100}[/tex] × 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
                                         = [tex]\frac{64}{100}[/tex] × 75
                                         = [tex]\frac{64}{20}[/tex]  × 15
                                         = [tex]\frac{64}{4}[/tex] × 3
                                         = 16 × 3
                                         = 48 questions are left
