Question 906299
You are depositing 2 dollars a week

an = a + (n - 1)d
a10 = a + (9)d=50
a16 = a + (15)d=62
a + 15d=62
a + 9d=50
6d=12
d=2
a+18=50
a=32
d=2
32+9*2=50
32+30=62

1 32
2 34
3 36
4 38
5 40
6 42
7 44
8 46
9 48

10 50
11 52
12 54
13 56
14 58
15 60
16 62