(50 POINTS) Would be worth more if I didn't get scammed out of points my last question so don't answer wrongly or it will just be removed, thanks!

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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?

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?