The answer is 73.33333333 (repeated). You can also write it as 73 or 73.3 with a line over the 3 (after the decimal point) to indicate it being repeated.
Answer:
70
Step-by-step explanation:
By exterior angle theorem:

25% = 1/4
4 × 4 =16
0.5 × 4 = 2
16 + 2 = 18
4.5 × 4 =18
the baby's body length 18 inches
Answer:
- 1.375
Step-by-step explanation:
Each dot is worth -1/8 of a unit when moving left.
So the coordinates of the dark dot are - 1 and - 3/8
or - 1.375 . The word coordinates (plural) bothers me. It all depends on how you have been asked to represent these points. Another possibility is (-1.375,0). You have to choose from the examples you have been given. I wouldn't do that because you have not been given and xy graph.
The answer is -9i , 9i
x^2+81=0
x^2=-81
x=√-81
=9i,-9i