− 14x/
3 i think this would be the answer
x+y = 47
x-y = 21
------------ add together
2x =68 divide by 2
x=34
x+y = 47
34+ y = 47
subtract 34 from each side
y = 13
the two numbers are 34 and 13
20 and the chance of heads would be 50/50
So basicly the question is asking, name 4 parrelegrams. Thr answer will be, Rectangle, Squrare Trapizoid, and Rhymbus. Not is a specifc order.
Answer:
The answer is -7 degrees. :)
Step-by-step explanation:
-5+9-11=7