18. the table shows the amount of money in a savings account after several weeks.
week
au awn
savings
$125
$140
$155
$170
$185
$200
a. is the sequence arithmetic or geometric? explain find the common difference or common ratio.
b. write a recursive formula for the sequence.
c. write an explicit formula for the sequence.

a. Arithmetic

b.

c.

Step-by-step explanation:

A sequence is arithmetic when the difference between one term and the next is a constant. On the other hand, a sequence is geometric when the next term is found by multiplying the previous by a constant.

In this case, the next term of the sequence can be found by adding $15. Therefore, the sequence is ARITHMETIC ✔️

The recursive formula will be the following:

The explicit formula is the following: