Which of the following is RS? pls answer asap thank you

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Which of those sequences is a geometric sequence

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.