Answer: Responsibility might include registering to vote, learning about laws that might affect his new status as an adult.
Duty may include registering for Selective Service.
Step-by-step explanation:
This may be better in the Social Studies category, but I gave it a shot as long as it's here in Mathematics.
Answer:
30.
first term = a
3r term = ar^2
So here ar^2/ a = r^2
r^2 = 5/180 = 1/36
r = 1/6
So missing term = 180 * 1/6 = 30.
3(x−4)(x+2)