Question

Which expression represents the series 1+5+25+125+625

Answer 1

Letter D thanks for asking for help

Answer 2

Answer:

$1 = {5}^{0}$

$5 = {5}^{1}$

$25 = {5}^{2}$

$125 = {5}^{3}$

$625 = {5}^{4}$

option A is correct, it starts with the power of zero (equals always one, see it as

$\frac{5}{5}$

and it goes up to the power of 4