Answer:
12x^2+9x^2-25 (quadratic equation)
a=12, b=9, c=-25
put this in quadratic formula
Step-by-step explanation:
Ans: The new price from each donut results in most revenue.
Work in the picture:
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A. sandwiches per hours is 4.5/hour
b. hours per sandwich is 0.33/sandwich
Answer: 
<u>Step-by-step explanation:</u>
