Y=mx+b
-3=1(1)+b
-3=1+b
-3-1=1-1+b
-4=b
y=1x-4
Should be 7.5% I have to add more words to this sentence to post it
Answer:

Step-by-step explanation:
Probability (P) is calculated as
P = 
The first required outcome is a red sweet from a total of 3 + 5 = 8
P( red) = 
There are now 2 red left and a count of 7, since 1 has been eaten, thus
P( second red ) = 
P( red and red ) =
×
=
= 
7+(-9)+6+(-10)+(-13)+(-5)=
7-9+6-10-13-5=
-24
mean is the sum of all the numbers divided by the total number of numbers within the data.
-24÷6=-4
The mean is -4.