Write an expression for the bar magnet

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.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

Will give a: 122 b: 90 c: 48 d: 180