Ihave a quick question.. how do you give answers without commenting on other peoples if that made any

How do you make a lenny face? plz, brailiest to who can answer first.

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.

What machine listens for http requests to come in to a website’s domain? a. a router b. a browser c. a server d. a uniform resource locator