Question

PLZ ASAP ITS FOR A TIMED TEST THAT DETERMINES EVERYTHING I BEGGGG..\There are seven roads that lead to the top of a hill. a How many different ways are there to reach the top and then go back down? Answer:

Answer 1

The correct answer is 49

Answer 2

42

Explanation:

For this it's very simple

This is a permutations question so -->

7 roads that go to the top and you want to find how many ways you can go back

7x7 since the ways you go down it is unrestricted BUT THIS IS NOt YOUR FINAL ANSWER

Since you cannot repeat the roads after one whole run, your equation is actually 7x6 giving you 42

Hope this helps