Combine like terms. what is a simpler form of the expression?

-3(-4y + 3) + 7y

How to determine whether two known pairs of points are on the same 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?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2