Answer:
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Step-by-step explanation:
Answer
She used 6/15 litres of oil in January
Explanation
We are given that, in January, she used 3/5 of the amount of oil she used in February.
We are also given that, she used 2/3 litres of oil in February.
Therefore, amount of oil used in January is:
3/5 • 2/3 = 6/15
She used 6/15 litres of oil in January
Answer:
A.) -5
Step-by-step explanation:
<em>Slope Formula ---> </em>
<em>m = slope</em>

<em>Eliminate negatives:</em>

<em>Solve:</em>

<em>Simplify:</em>

I see 2 answers here. Company C and D at 8 months... (Companies A and B at 5 months)
Explanation:
I took the Maximum and subtracted it by the Minimum.
Ex. Company D: 27 (Max) - 19 (Min) = 8 months
Vertex is

and minimum value of f(x) is 12
Hope this helps