Simplify the Expression by Combining Like Terms, If Possible

question 15

Multiple Choice

Simplify the expression by combining like terms, if possible.
--3(5r + 6) + 3(4r + 7)

• A) -3r + 3
• B) -33r
• C) 2r + 3
• D) -3r + 6

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Definitions:

Standard Deviation

Standard deviation is a statistical measure of the dispersion or variability of a set of data points around their mean, indicating how spread out the data points are.

Mean

A measure of central tendency that is calculated by dividing the summation of all values in a data set by the number of values.

Laws Of Variance

Principles that describe how variance behaves in different statistical distributions and under various transformations.

Probability Distribution

A function in mathematics that determines the chances of different outcomes for a given experiment.