Agroup of mountain climbers begin an expedition with 270 pounds of food. they plan to eat a total of 15 pounds of food per day. write and solve a linear equation to find the number of days their food will lady

Name the quadrilaterals that have four equal sides.

Two lines parallel to the same plane are parallel to eachother

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.