What were the permanent homes of the Northwest Coast Indians called?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio

Write the factored form of this trinomial 9x^2+18x-7

The product of 3 and a number increased by 8 is 31