Which of the following is a correct interpretation of the expression -4 + 13−4+13minus, 4, plus, 13?

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.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error