Can someone please help me I really really need help please help me.

Answer:
Step-by-step explanation:
Total chairs:
Answer: C = 24n + 18
Step-by-step explanation:
Since there are n number of classrooms and each classroom needs 24 chairs, the number of chairs needed by classrooms is 24xn. In addition it needs 18 chairs for the teacher's lounge. so:
C = 24n + 18