Tom is participating in a triathlon. In the triathlon, Tom can choose to swim, bike, and run various distances. These distances are shown in the table below. Part A:
Tom must choose 1 distance to swim, 1 distance to bike, and 1 distance to run. Create a sample space that shows all of Tom's possible choices.

Part B:
What is the probability that Tom's triathlon is at least 45 miles long?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]