Which is the best definition for an inequality? A. a mathematical statement that must contain an inequality symbol and parentheses
B. a mathematical statement that uses an equal sign
C. a mathematical statement that must contain a variable and an inequality symbol
D. a mathematical statement that uses unequal symbols to compare two quantities

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

What is the product? a-3/15a × 5/a-3

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?