A wireless phone company offers 2 plans and one play on there is a monthly fee of $40 in a charge of $0.25 per minute in the other plan there is a monthly free of $25 in his heart of 40 cents per minute for what number of minutes are the costs equal

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?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling