What is an expression for “72 less than 12 times a number”?

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?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

How do i multiply two digit numbers