suppose ruth ann has 3 routes she can travel between the school to the library and 5 routes from the library to her home. how many routes are there from ruth anns school to her home with a stop at the library.
a. 9
b. 60
c. 15
d. 25
To find the answer, multiply the number of routes because it gives the number of permutations (choices) you can take. There are 3 routes between school and the library. There are 5 routes from the library to her home. Therefore, there are 3 x 5 = 15 total routes
