If a bank compounds interest quarterly for 6 years how many total compound periods are there?

do you have a picture to this question because I don’t understand

pooopoopopoopop

step-by-step explanati∵∵∴∴on:

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question