Answer:
5/2
Step-by-step explanation:
Y(2)-Y(1)/ X(2)-X(1)
(27-2)/(1-(-9)
25/10
simplified=5/2
30/90 simplifies to 1/3 because 90/30 = 3. 3/1=3.
Answer: Our required linear equation would be 
Step-by-step explanation:
Since we have given that
Number of cups = 150
Cost = $20
Number of cups = 400
Cost = $45
Let x be the number of cups, y be the cost .
We will use "Equation of line using Two point slope":

Hence, our required linear equation would be 
For a just divide a by 46
a/46=c
For b
322=46c
322/46=c
7 circuits =c
2560 hairs is your answer