Lila is building a playground. There are 9 different slides and 5 swing sets to choose from. If the playground will include one of each type of play structure, how many different playgrounds can Lila build?

Name the quadrilaterals that have four equal sides.

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.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years