
The formula for an arithmetic sequence is as follows:

In this formula,
represents the
th term of the sequence and
represents the common difference between each term.
Plug in the known values.

Subtract.

Multiply.

Add.

Answer:
2.7
Step-by-step explanation:
The 3 does not round up the 7, so it stays as 2.7
Answer:
8 and one halve
Step-by-step explanation:
12+5 =17
17/2 is 8 1/2
Answer:
I think the answer would be $21
Step-by-step explanation:
On a calculator you type 108.53 then divide it by six and add 18%.