They could miss each other 30 different ways. I solved this by drawing it out six different stores and making Alice and Betsy go to each one may different times. Example photo included for how I got the first five. Then I did the same thing, but switch A and B, counted that towards the total and continued the is drawing until all the possibilities were found.
4.265 rounded to the nearest hundredth is 4.27

the example on your picture uses A(n) and n = years, but is pretty much the same, in this case is t = years.
Answer: Magnitude of wx is 
Step-by-step explanation:
Since we have given that

Now, first we will find 'wx':

We need to find the "magnitude":

Hence, Magnitude of wx is 
Answer:
55
Step-by-step explanation:
412.5 / 7.5 =55