Work out the equation of a line which has a gradient of 1/2 and passes through the point 4,-2? Pls answer i dont know

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?

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Item 1 solve for s. s+24=90 −114 −66 66 114