Help me solve this problem please

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily