Use the markup equation S = C + rC, where S is the selling price, C is the cost, and r is the markup rate. A car navigation system costing $310 is sold for $444. Find the markup rate. Round to the nearest tenth of a percent.

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Which of the following can be used to explain a statement in a geometric proof?