What is the expected value of X? If the time (in minutes) between arrivals of successive customers is exponentially distributed with l 5 .5, how much time can be expected to elapse before the tenth customer arrives?

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Can someone me with this problem . show your work .

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?