Angle is x. sup - adds up to 180. comp adds up to 90
180-x = 3(90-x)+40
180-x = 270-3x+40
180-x = 310-3x
180+2x = 310
2x = 130
x=65
The answer is D because if you go to 150 and line it up you will get 7 as you answer
Lower quartile (xL): 27
Upper quartile (xU): 65
<span>Interquartile range (xU-xL): 38</span>
Three hundred and eighty nine thousand , four hundred and fifty - seven.........