This is a geometric sequence with a common ratio of -1/3 and an initial term of -324. Any geometric sequence can be expressed as:
a(n)=ar^(n-1), in this case a=-324 and r=-1/3 so
a(n)=-324(-1/3)^(n-1) so the 5th term will be
a(5)=-324(-1/3)^4
a(5)=-324/81
a(5)= -4
You could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150
Whats the question ill be happy to help
Answer:
-1=y
Step-by-step explanation: