Answer:
15x^2−14xy−8y^2−x−y
Step-by-step explanation:
Combine like units.
The answer and equation is 17 - 19 = -2
Answer:

Step-by-step explanation:
<u>Step 1: Determine the unit rate</u>



<u>Step 2: Determine the amount of gasoline used for 216 miles</u>


Answer: 
Because logarithms were a lot less time-consuming than other methods of finding roots. They were also more accurate in the sense that it was harder to make a mistake.
your answer is going to be C