Is this number prime or composite 70

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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.

Write an equation for the function that includes the points (1,4/5) and (2,2/3)