Pls help i suck at math
what does x= for number 9 and 12

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

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