Answer: Associative property
Step-by-step explanation:
Answer:
9a+18=9
9a=-9
a=-1
Step-by-step explanation:
You will divide the 12 by 28: 12/28 and that equals 3/7
Total ratio = 4+7 = 11
33/11 = 3
4x3 = 12
7x3 = 21
so the two groups are 12:21
which is also = 4:7
A) y= -2, 3, 7
B) y= 8, 0, -6
C) y= -8, 1, 7
d) y= 1, -2, -6
