Which of the following is equivalent to the given expression? 
Definitions:
Compound Name
The unique name given to a chemical substance, describing its composition and molecular structure.
Propanoic Acid
A naturally occurring organic compound with the formula C2H5COOH, used in the manufacture of various plastics and preservatives.
Line Structure
A simplified representation of a chemical structure using lines to denote chemical bonds and avoiding explicit representation of carbon and hydrogen atoms.
Butanoic Acid
A carboxylic acid with the formula C4H8O2, also known as butyric acid, with a characteristic unpleasant smell, used in the manufacturing of various esters.
Q15: Perform the division and simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8633/.jpg"
Q28: Find the cube roots of the following
Q72: Given <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8633/.jpg" alt="Given ,
Q75: Find 9A. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8633/.jpg" alt="Find 9A.
Q111: An object moving vertically is at the
Q114: Given that Force 1 = 70 pounds
Q117: Use a calculator to evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8633/.jpg"
Q129: Solve the system by the method of
Q134: The displacement from equilibrium of an oscillating
Q139: Condense the expression <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8633/.jpg" alt="Condense the