Apencil at a stationery store costs $1, and a pen costs $1.50. shawn spent $12 at the store. he bought a total of 9 items. which system of equations can be used to find the number of pencils (x) and pens (y) he bought?

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.

What can you determine about the solutions of this system

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b