Triangle PQR is reflected across a line, P = (4,-5), and P'=(-4, 5). What is the line of reflection?
the x-axis
the y-axis
the line y = x
the line y = -x

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.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.