I don’t know but I’m ganna keep typing because I need 20 letters
The area of Erin's circle to the nearest hundredth is 50.24 in².
<h3>What is the area of the circle?
</h3>
A circle is a bounded figure which points from its center to its circumference is equidistant.
Area of a circle = πr²
Where :
3.14 X 4²
(3.14) (4) (4) = 50.24 in²
To learn more about the area of a circle, please check: brainly.com/question/14351152
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the geometric mean is 20
the geometric mean of 2 numbers a and b is 
= 
= 20
Answer:
32
Step-by-step explanation:
x + y = 48
x - y = 16
-----------------
2x = 64
x = 32
32-y = 16
y = 16
We let y equal to the elevation above sea level so that the elevation of the rock climber after x minutes of climbing would be:
y = 2x + 50
His initial height can be calculated when x is equal to zero it is when the climber is not yet climbing. Therefore, the rock climber'sinitial height above sea level would be 50 meters.
