Simplify.
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Definitions:
Age
The length of time that an individual has lived or a thing has existed, typically expressed in years.
Standard Deviation
An indicator of the degree of spread or variability among a set of figures, showing how much the values differ from the average.
Mean Test Score
The average score obtained from a group of tests or examinations.
Test Score
The numerical outcome or result obtained from an academic test or examination.
Q3: The sum of the ages of Art,
Q19: The Epson Stylus 850 can print Helen's
Q27: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8504/.jpg" alt=" A)
Q33: The sum of two numbers is 4.
Q66: m = <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8504/.jpg" alt="m =
Q68: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8504/.jpg" alt=" A) 2 B)
Q116: x + 5y = 2 -4x +
Q145: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8504/.jpg" alt=" A)
Q166: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8504/.jpg" alt=" A) 1 B)
Q189: 30, 18, 15<br>A) 45<br>B) 30<br>C) 18<br>D) 90