Answer:
34
Step-by-step explanation:
There are only two numbers so we can subtract them.
There are also key words such as: how long ( also means how much) and if we subtract that it will give us: 85-51=34
I might be wrong but I think the answer is 167 metres
The type of research that's illustrated in this case is a descriptive study.
<h3>What is a descriptive study?</h3>
Descriptive study simply means a study where information is collected without changing the environment.
Since Dr. Thompson was able to determine how much time a sample of children spent playing outside, this is a descriptive study.
Learn more about researches on:
brainly.com/question/25257437
Answer:
The Slope of the line is undefined
Step-by-step explanation: