HELP QUICK
(question in picture)

For the function, f(x) = -5x 2, find f(-4).

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.