Marna is playing a game where you score ? 5 points each time you guess the correct answer. the goal is to get the lowest score. to win the game, marna must have a score less than ? 80 points. how many correct answers does marna need to win the game?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

What is the average diastolic blood pressure for adults