PLEASE SOMEONE HELP ME WITH THIS PROBLEM

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

What is the definition of exponential decay?

Which table represents a linear function? i'll give brainliest to first answer ^'^