Rachel signed up for a frequent-flier program. She receives 4,700 frequent-flier miles for
her first round trip and 1,400 frequent-flier miles for each additional round-trip. How many
frequent-flier miles will she have after 5 round-trips?
Rachel will have
frequent-flier miles after 5 round-trips.

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

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.

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have