Step-by-step explanation:
angle 7 is corresponding to angle 1.
-7x + 2x (add common factors)
-5x+6+21 (what happen to one side happens to the others
-5x=21 (divide by five)
x= -3
Answer:
50 out of 100 or 50%
Step-by-step explanation:
the data represents between quartile 3 and quartile 1 (known as the Inter-Quartile Range, IQR) is, theoretically, supposed to represent 50% of all data items
Answer:1,81 and 121.;)
Step-by-step explanation:

subtract the numbers:


subtract 9 from both sides

simplify

divide both sides by 6


decimal

Hope this helps :)