Question

What is the 11th term of the following geometric sequence?
7/9, -7/3,  7, -21, 63

Answer 1

The choices are 
a. 15,309
b. -15, 309
c. -45, 927
d. 45,927

Answer 2

do you know how to find common ration or what is common ratio ?

Answer 3

The gap of two numbers

Answer 4

to find common ratio you can divide next term with the previous one \[\large\rm r=\frac{ a_2 }{ a_1} ~~ or~~\frac{ a_3 }{ a_2 } ~~or ~~\frac{ a_4 }{ a_3 }\]
then use the general form of geometeric sequence
\[\huge\rm a_n = a_1 \times (r)^{n-1} \]
a_1 = first term
n = number of term that u have to find
r= ratio