4. (10pts) Disneyland has reopened since it's closure from COVID-19. Adult tickets cost $7.75 and children tickets cost $3.25. After their first day of reopening, they counted a total of 650 people attending in total, and made a revenue of $3,215. How many children attended and how many adult attended Disneyland? 5. (10pts) The difference of half of one number and three of another is thirty-six. When the two numbers are added together, the result is negative thirty-three. (a) Write a system of linear equations for the problem above. (b) Before you solve the system, make a guess as to which method you think will be best to solve for x and 3). Explain why you think that. (c) Solve the system using two different methods. Was your original guess correct