Answer: Please see answer below
Explanation: Since Samanta will pay $70 for a year, the following timeline shows her payment .
0 Month= $0 it is stated that her first payment is one month from now
1 Month = -$70
2 Month = -$70
3 Month = -$70
4 Month = -$70
5 Month = -$70
6 Month = -$70
7 Month = -$70
8 Month = -$70
9 Month = -$70
10 Month = -$70
11 Month = -$70
12 Month = -$70