What is 2+2+4+5 MARK BRAINLIEST PLS ANSWER NEED HELP ASAP

Multiply. −2x(6x4−7x2+x−5) express the answer in standard form. enter your answer in the box.

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

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /