Answer:
158
Step-by-step explanation:
The sequence is 3, 8, 13, ..., 253.
Going backwards, it's 253, 248, 243, ..., 3.
First term is 253, common difference is -5.
The nth term is:
a = 253 − 5(n − 1)
The 20th term is:
a = 253 − 5(20 − 1)
a = 158
prt
18000(1.035)=18639
7
n+4n=35
5n=35
5n/5=35/5
n=7
a because a variable cannot be a variable
8 months
12/3 = 4, 1/3 is 4 so 1/3 + 1/3 = 2/3 or 8