Answer:
88
Step-by-step explanation:
We are given that in arithmetic sequence , the nth term
is given by the formula

Where 
d=Common difference
In an geometric sequence, the nth term is given by

Where r= Common ratio
1,4,7,10,..
We have to find 30th term.







Therefore, given sequence is an arithmetic sequence because the difference between consecutive terms is constant.
Substitute n=30 , d=3 a=1 in the given formula of arithmetic sequence
Then, we get

Hence, the 30th term of sequence is 88.
Answer:
12
Step-by-step explanation:
13 - x = 1
So isolate x
You need to subtract 13 from both sides to isolate x.
13 - x = 1
13 - 13 -x = 1 - 13
13 -13 equals 0 so it cancels out.
You are left with
- x = 1 -13
-x = -12
Divide the negatives on both sides.
Since a negative divided by a negative equals a positive...
x = 12!
Answer:
i dont know i am so sorry
Step-by-step explanation:
good luck with it though
Step-by-step explanation:
<u>Step 1: Subtract 18 from both sides</u>



<u>Step 2: Divide both sides by 6</u>


Answer: 