Important and Urgent Can someone please give me the correct answer on how to do this please.

I will mark you brainliest if correct
it has to look like the image on the side

Please help!!!

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

Match the sentence fragment in the first column with the appropriate ending in the second column. a little per favore?

Java the manager of a football stadium wants you to write a program that calculates the total ticket sales after each game