PLEASEEE HELPPP In this expression, Marianne claims that 2x and –x are not like terms because –x does not have a coefficient. Is she correct? Explain your reasoning.
m squared + 2 x minus x + 3 m squared + 2

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?