Perimeter of all these shapes?

This is so hard and it’s for a test

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

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7