Answer:
m = -2 and b = -1/3
m = -2 and b = -2/3.
Step-by-step explanation:
y = -2x - 1/3
y = -2x - 2/3
This system has no solutions because y cannot be 2 different values at once.
This is one of the photos I used to answer, I’m going to send the second one
199.
the z score for the 90th percentile is 1.28, so you can solve the equation

which gets you the 199