exam Maths Puzzle Numerical Ability

I need help! : The total surface area of a solid cylinder is 231cm^2 and its curved surface area is two-thirds of the total surface area. Find the volume of the cylinder. (Take pi-22/7)

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Please help me solve this problem. The problem ststes to solve for x and express the answer in interval notation:/3x-4/>14
- You are selling tickets for a musical at your local community college. Student tickets cost $5 and general admission tickets cost $8. If you sell 500 tickets and collect $3475, how many student tickets and how many general admission