Answer:
ummm idk xD
Step-by-step explanation:
<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>
Answer:
tip = 8.40
Total cost =64.40
Step-by-step explanation:
Take the bill and multiply by the tip percent to determine the amount of the tip
tip = 56*15%
tip = 56*.15
tip =8.40
The total cost is 56+8.40 =64.40