I NEED HELP!! The amount of food a dog should eat daily is based on its weight. The picture shows the ratio of weight to cups of food. A photo of a dog is shown. The caption shows that the dog is fifty pounds and the food dish contains two cups.

Question 1
Part A

What is the ratio of cups of dog food to the dog’s weight in pounds? Use a fraction or a colon to write the ratio

What's the difference between: x≥0 and nonnegative integer. ?

Find the value of the variable and the length of each secant segment.

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.