Pls need answer test grade pls beg you pls need the answer pls help me pls

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.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

How many verticies does a triangular prims have