21 x 9 = 9 x 21 is the commutative property.
The area of circle is 379.94 cm².
Step-by-step explanation:
Given,
Radius of circle = 11 centimeters
We have to calculate the area of circle.
We know that;
Area of circle = 
Here;
π = 3.14 , r = 11
Area of circle = 
Area of circle = 3.14*121
Area of circle = 379.94 squared centimeters
The area of circle is 379.94 squared centimeters.
Keywords: area, circle
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Answer: A
Why: She gets a base $159 each day, plus 6% (0.06) of each sale, x. 0.06x+159=her pay