PLEASE HELP! Hello! I'm having a lot of trouble figuring out these problems. I'm not asking for all of the answers but, just a better understanding. Thank you!

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

What is the multiplicative rate of change of the exponential function shown on the graph?

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?