Two cities are 3850 miles apart. a plane leaves one of them ,traveling towards the other at an average speed of 360 miles per hour. at the same time a plane leaves the other, traveling toward the first, at an average speed of 410 miles per hour. how long will it take them to meet.

One positive number is 9 more than twice another. if their product is 95, find the numbers

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?