Mrs. Weaver is passing out counters toher math students. Each student received 9 counters. She distributed a total of 225 counters. Write an equation to find out how many s, math students Mrs. Weaver has in her class.

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.

For the equations below which statement is true ? -2x=14 6x=-42

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?