7) Six friends go out to eat. The bill, including tax and tip, came ou
friends paid one-half of the bill. The other four friends paid me
money did each of the four friends have to pay? Assume each of the four friends paid
the same amount.

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

The graph of f(x) = x is reflected over the y-axis. use the graphing calculator to graph this reflection. which list containsthree points that lie on the graph of the reflection?

Nielsen media research wants to estimate the mean amount of time (in minutes) that full- time college students spend watching television each weekday. find the sample size necessary to estimate the mean with a 15-minute margin of error. assume that a 95% confidence level is desired. also assume that the population standard deviation is known to be 112.2 minutes.