In a box of pens, there are three times as many red pens as green pens and two times as many green pens as blue pens. for the pens in the box, write down the ratio of the number of red pens to the number of green pens to the number of blue pens.

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.

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse