Use substitution to determine whether the system below has no solution, infinitely many solutions or one solution. 15x + 5y = 20
y = 8 - 3x

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?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review