354.9/9.1=39
So. elaine averaged 39 miles per gallon
The answer is 6x^2+4xy^2 multiply the 2xy to each term
Using it's concept, the rate of change between point C and point D is of 2.
<h3>What is the average rate of change of a function?</h3>
The average rate of change of a function is given by the <u>change in the output divided by the change in the input</u>. Hence, over an interval [a,b], the rate is given as follows:

Considering the points of the given linear function, we have that:
Hence the rate of change between point C and point D is given by:
r = (4 - 2)/(2 - 1) = 2.
More can be learned about the average rate of change of a function at brainly.com/question/24313700
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4. 6/8, 5. 3 5/8, 6. 7 7/8, 7. 72 months and 2,190 days
Answer:
840 ways.
Step-by-step explanation:
For the first jar, you have 7 marbles to put in.
For the second, you now have 6 marbles to put in.
For the third, you have 5 marbles.
For the fourth, you have 4 marbles.
7 * 6 * 5 * 4
= 42 * 20
= 840 ways.
Hope this helps!