What is the measure of angle R? A. 30° B. 50° C. 100° D. 180°
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The formula for density of an object is Density= 
First you plug in the information you already know. 163.5= 
Now you have to solve for the mass so you multiply 0.492 by 163.5 
Lastly, you simplify and you will get 80.44. Hope this helped :)
