From the following figure, how can you conclude that lines i and m are parallel?

What is the value of the digit 1 in the number 13?

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.

Sum is 17 and their difference is 3