HELP ASAP y - x = -7 in slope-intercept form.

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

The sum of two numbers is 86, and their difference is 20. find the two numbers

Is it greater than or less than7*3_9*2