Find x. Round the answer to the nearest tenth. A. 1.7 B. 1.9 C. 2.1 D. 2.2

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?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²