What is the sum? 3/x + 4/x(squared)

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?