The diameter of a circle is 7m. Find its area in terms of pie(urgent plz help)

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.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?