A plane travels 1400 miles to Munich and back. The trip there was with the wind. It took 14 hours. The trip back was into the wind. The trip back took 28 hours. Find the speed of the plane in still air and the speed of the wind?

What signals you that factoring by grouping is the best method to use when factoring a problem?

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.

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices