Two lines meet at a point that is also the vertex of an angle. Set up and solve an appropriate equation for x and y​

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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?