How many terms are in the following expression?

2x + 8 - 3y

PLEASE HELP ASAP!

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

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 is the area of the triangle 10 13 12