Teri incorrectly solved the system of equations below. Correctly identify the error Teri made.

2x - 10 y = -30

x - 5y = 20

Step 1:

x - 5y = 20

x = 5y + 20

Step 2:

2(5y + 20) - 10 y = -30

10y + 40 - 10y = -30

40 = -30

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

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?