ANSWER
EXPLANATION
The sum of the first 
terms of a geometric sequence is given by;
Where , is the number of terms and 
is the first term.
When 
, we have 
, we get;
Answer:
763/100 is the answer to this
Answer:
-4
Step-by-step explanation:
negative plus a negative means add
You add the number then keep the negative sign
Answer:
8/15
Step-by-step explanation:
Well to add fractions you have to have the same denominator so you would multiply your 1/3 by 5 to be 5/15 then you can add.
3/15 + 5/15 = 8/15
Range is greater for the 13-14 year olds.
