Stefan bought turkey 7 sandwiches and 3 ham sandwiches for a total cost of $53.75. Nancy bought 2 turkey sandwiches and 4 ham sandwiches for a total cost of $29.50. The equations below

represent Stefan's and Nancy's purchases.

7t + 3h = 53.75

2t + 4h = 29.50

What is the cost of one turkey sandwich?

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?