Ill mark brainliest may someone pls help

Answer:
The zoo is more expensive for 12 students.
It costs $6 more.
Step-by-step explanation:
(Money / Amount of people) = (Amount for 1 person)
(Amount for 1 person x 12 people = amount for 12 people)
36.75 / 3 = 12.25
12.25 x 12 = 147
(Money / Amount of people) = (Amount for 1 person)
(Amount for 1 person x 12 people = amount for 12 people)
51 / 4 = 12.75
12.75 x 12 = 153
To solve the second blank:
153 - 147 = 6