Fiona finds 1 shell on her first day at the beach.every day that week,she finds twice as many shells as she did the day before.how many shells does Fiona find on the seventh day?

Answer 1

term(n) = a r^(n-1), your a = 1, and your r = 2

term(7) = 1(2)^6 = 64

or

you could just make a list of the terms