The circle graph that can best display the data is called a pie chart. The pie chart shows the given data as part of a whole and indicates its percentage as well. In this case, the pie chart will be divided into three - those students who signed to play the trumpet, flute, and violin.
Answer:

Step-by-step explanation:
Let
x -----> the number of minutes
y ----> the balloon's height in feet
we know that
The linear equation in slope intercept form is equal to

where
m is the slope
b is the y-coordinate of the y-intercept
In this problem we have that
The slope is equal to
----> is negative because is a decreasing function

Remember that the y-intercept is the value of y when the value of x is equal to zero
In this context the y-intercept is the height of the balloon when the time is equal to zero (initial height)
substitute

Answer:
T15 = 31
Step-by-step explanation:
Its in the picture
I hope it helps :)
Answer:
sqrt(11)
Step-by-step explanation:
3^3+sqrt2^2=11