What is the probability that you will roll a dice and get 3, then get an ace from a deck, then (without replacing the other card) draw a black 2?

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

One integer is 8 times another. if the product is 72, then find the integers