How many ways can you go up a 10 step staircase if you have very long legs and make 1, 2, OR 3 step moves?


If you divide 3 to the power of 99 by 7 what is the remainder?


Thanks so much for all your help. I always get stuck on these.

Guest Jul 6, 2018

3^9, 3^99, 3^999, 3^9999.......etc mod 7 = 6 as the remainder.

Guest Jul 6, 2018

5 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.