1) A tank is being filled with water at a constant rate of 800 gallons per minute. The initial amount of water contained in the tank is 120 gallons. a) Write down a linear function that represent the total number of gallons V in the tank after t minutes. b) What does 800 represent? The average decrease/increase in y for each x , c) How do you represent this function? Y as a function of x .

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

The equations 2x-5y = -5 11x-5y = 15 9x+ 5y = 5 and 14x+ 5y = -5 are shown on the graph below. which system of equations has a solution of approximately (-0.6. 0.8)?

What is the value of d? 9d = –5.4 d =