Fern's estimate is not correct because he rounded 548 wrong, it would be rounded to 550 instead since the number 8 is closer to 10. So the correct answer would be 420.
The answer is 
= 4
points per minute
Here's link to the answer:
cutt.us/tWGpn
Answer:
0 hope it helps ok bye have a good grade
X=2
Y=4
Multiply top so y values cancel out, so multiple top by -3. Y values cancel out. You combine top and bottom equations, x=2. Plug 2 in first equation for x. Y=4
