Answer:
1,4 and 5
Step-by-step explanation:
The measures of central tendency, fancy words for the middle, are
C. Mode
D. Mean
E. Median
Answer:
20. 4n+5+8n-5=180(linear pair)
12n=180
n=15
21. 9x-6=8.5x+2(can be seen from image)
9x-8.5x=2+6
0.5x=8
x=8/0.5
x=80/5
x=16
22. 4z+3z+6=90°(Complementary)
7z+6=90°
7z=84°
z=12°
7x+40... If you go to mathwarehouse.com you can type your question in and you'll get an answer in less than a second