Answer:
y=5/4x-1
Step-by-step explanation:
-6-4/-4-4 = -10/-8 = 5/4 (slope)
y=5/4x+b
4=5/4(4)+b
b=-1
y=5/4x-1
The answer would be B. -4
Answer:

Step-by-step explanation:
Given



Required
The probability of selecting 2 same colors when the first is not replaced
The total number of ball is:


This is calculated as:

So, we have:

<em>Note that: 1 is subtracted because it is a probability without replacement</em>






Answer:
70cm
Step-by-step explanation:
1 week is 7 days.
3 weeks = 21 days. Answer D. is correct.
A hour is 3600 seconds
24 hours ( a day ) is 86400 seconds
21 days is 1814400 seconds. * This is not an option *
Since 24 hours are in a day 24 hours x 21 days is 504 hours
Answer A. is correct
504 hours x 60 minutes per hour is 30240
Answer B. is correct. These are all the correct answers, A,B, and D.