6 foot makes 4.5 foot shadow
1 foot makes=4.5/6
so 50 foot =4.5/6*50 = tree makes 37.5 foot shadow
0.68 = 68/100
68/100 simplest form is 17/25
hope this helps
Answer:
14 miles
added with the miles she warmed up is 17 miles
The equation that shows how the total number of cups of ice used, y, depends on the number of glasses filled, x, is 
<h3>
Linear function</h3>
Filling the cooler is an illustration of a linear function
A linear function is represented as: 
Where
- m represents the slope/rate
- b represents the y-intercept/the initial value
- x and y are the variables
<h3>The equations</h3>
By comparison, we have the following parameters
--- the amount of cups per ice
---- the initial amount of cup
So, the equation that represents this scenario is

Read more about linear functions at:
brainly.com/question/14323743