Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. 
Definitions:
Respirator
A device designed to protect the wearer from inhaling harmful dust, fumes, vapors, or gases.
Increased Afterload
A condition in which the heart has to work harder to eject blood due to increased vascular resistance.
Increased Preload
A condition in which there is an elevated volume of blood in the ventricles at the end of diastole, before the heart contracts.
Decreased Contractility
A reduction in the strength or ability of a muscle, particularly the heart muscle, to contract, which can affect overall muscle function.
Q1: Graph <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3543/.jpg" alt="Graph ."
Q2: Does the point (-15, 15) satisfy the
Q4: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3543/.jpg" alt="Evaluate ."
Q15: Write a formula for the nth term
Q16: Simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3543/.jpg" alt="Simplify. A)
Q19: Solve: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3543/.jpg" alt="Solve: A)
Q20: Each time an aluminum beverage can is
Q24: Find all real solutions. -7(x - 5)<sup>9</sup>
Q26: A cleft palate is an example of
Q41: Find the midpoint and length of the