Me . i don't really want to do it in lazy as hell

Plz me plz i need and plz delte this after answer

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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.