Answer:
,bn ljb ib
Step-by-step explanation:
Answer:
K= -3
Step-by-step explanation:
-3k+6=15
-6 -6
-3k=9
/-3 /-3
k=-3
subtract 6 from both sides.
divide each side by -3 to get K alone
-3 is your answer.
The answer for number 7 is x=3
Sum is

r=common ratio
a1=first term
it looks like 2^0=1 is the first term aka a1
it goes to the 9th term (2^9)
sub



The answer is B.




If you find a common denominator, the process becomes much easier. I hope this was helpful.