Please help, will give brainliest!

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120