Answer:
The average of all textbooks is $38.60.
Step-by-step explanation:
Here's why to calculate average we do sum of all numbers divided by the number of numbers, for example if we average 2 and 3, we do 2+3 divided by 2. Which happens to be 2.5. Now for this problem we divide the sum by 3.
Therefore getting our answer of $38.60.
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Okay, to find length CE, your going to know the value of x. Length BC + CE = BD + DE.3x+47+x+26=27+x+10Simplify the equation to get4x+73=37+xyou can choose one of four ways to continue, but I will choose to subtract x3x+73=37Subtract 73 from both sides of the equal sign3x=-36divide by 3 on both sides of the equal sign to get the value of xx=-12Now, plug in -12 for x in length CE to get -12+26=14
We have a linear function 
and we know that 
Answer:
-4/8
Step-by-step explanation:
slope=rise/run
y2-y1/x2-x1
(-2,3) (6, -1)
x1 y1)( x2 y2
-1 - 3= (-4)
6-(-2)
6+2=8
m/slope= -4/8
The answer is 1. hope this helps
