Five athlete are entered into a competition. four of the athlete have had their turns. their scores are 9.8 seconds, 9.75 seconds 9.79 seconds and 9.81 seconds to run 200 m distance. what score must the last athlete get in order to win the competition?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1