Answer:

Step-by-step explanation:
A ratio is a comparison of two quantities and can be written in several forms including fractions. It is most commonly written in fraction form or a:b.
To write a ratio, we count the number of each quantity we are comparing or use the variable for that quantity. We write radius:circumference. Recall, the circumference of a circle can be found using
or
.
We write r:
or r:
.
We can also write in fraction form:
or 
Answer:
The vertical change between two points is called the rise, and the horizontal change is called the run.
Answer:
its 11
Step-by-step explanation:
the mode is the difference between the highest and lowest date input
19-8=11
Answer:

Step-by-step explanation:
see the picture attached for further explanation.