To graph the equations, rewrite the equations written in standard form to slope-intercept form of the equation.

2y+20=100
2y=80
y=40
The explanation for this would because because the two base angles of an isosceles triangle are equal so since the both equal to 40 degrees, in total would be 80 degrees.
Since the total degrees of a triangle is 180 and you know the base angles make up for 80 percent you subtract that from the total of the angle your trying to find, which is 2y+20.
You can calculate the difference/vector of both points:

then calculate the magnitude/length like pythagoras
It would make 5 complete frames, and about 8/10 of another frame.
108 / 18.375 = 5.8&*)&^&%*$*
I used a calculator.
You could keep adding 18 and 3/8 over and over again until you get right under 108 if you're good at math like me, but most people would have to add 18 and 3/8 separately.
Thanks, and if you liked my answer, please consider giving me the brainliest answer, because I need 5 of them to get to the next level.
Answer:
(-2, -2)
Step-by-step explanation: