Ineed to know what t is but i don't understand how to get it

Which fraction below is equivalent to 10/12?

Which shows the pre image of triangle xyz

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