Need work for problems I already know the answers

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

Which of the following circles have their centers on the x-axis? check all that apply.

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.