A molecule is measured and the width is 3 multiplied by 10 to the power of negative 6 centimeters. How long with a string of 225 similar molecules be. Give the answer in scientific notation

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