The equation in slope intercept form for the line with slope 3 and Y intercept -1 is y = 3x -1 .
Least to Greatest Order -
7/12, 7/10, 7/9, 7/8
(Least) (Greatest)
Answer: 504
Step-by-step explanation:
When we select r things from n things in a order , we use permutations.
Formula for permutation: 
Given : The number of family members who are potential kidney donors. = 9
Number of people needed to be selected for best match, a second-best match, and a third-best match ( in an order)=3
Then, the number of possible orders are = 

Hence, the number of possible orders 504.
9w+63=27
27-63= -36
-36•/•9=-4
answer: -4=w
hope this helps