Please help I would appreciate it

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

Adriveway is 40 yards long about how many meters long is it

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)