The solution to a system of equations is (6,-3). Choose two equations that might make up the system. Group of answer choices
y=-3x+6

y=2x−9

y=-5x+27

y=2x−15

y=-4x+27

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'