Answer:
13x
Step-by-step explanation:
7x+6x=13x. But since i do not have a second part of the question i can not tell you what x equals
we use the rectangle rule
96-92=4 parts of 92 octane
98-96=2 parts of 98 octane
4x+2x=12
6x=12
x=2
4x=8 liters of 92 octane
2x=4 liters of 98 octane
<h2>Hey there! </h2><h2>

</h2><h3>DIVIDE by

on BOTH SIDES </h3><h3>

</h3><h3>CANCEL out:

because it gives you

</h3><h3>KEEP:

because it helps us solve the number that is being

to

</h3><h3>

</h3><h2>Good luck on your assignment and enjoy your day! </h2><h2>~

</h2><h3 />
Let r denote radius.
To find circumference we use

To find area we use

Hope this helps.
Answer:
The average rate of change(A(x)) of a function f(x) from a to b as;

Given the function: 
For x =1 ,

and for x=5

then;
the average rate of change of a function A(x)=
or

Therefore, the average rate of change of the given function from x=1 to x=5 is; -35.7084