Answer:
5
Step-by-step explanation:
You <em>multiply</em> the number of people by the number of each slices each person gets. Which is 100; 50x2.
Each cake has 20 slices so you <em>divide</em> 100 by 20. Which equals 5.
It would take 5 cakes to feed all 50 people 2 slices each.
<em>Hope this helps</em>. :)
<h3>
<u>Explanation</u></h3>

The vertex of Parabola is the maximum/minimum point depending on the value of a.
<u>h-value</u>

<u>k-value</u>

The minimum value is the value of k. Therefore the minimum value is - 49/4 at x = -5/2.
This is Calculus method. We simply differentiate the function then substitute y' = 0.

Substitute f'(x) = 0

Substitute x = -5/2 in the original equation.

<h3>
<u>Answer</u><u /></h3>
<u>
</u>
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