Answer:

or

Step-by-step explanation:
Hello!
Use the quadratic formula: 
First, let's convert our equation to standard form of a Quadratic: ax² + bx + c = 0
3x² = 80
3x² - 80 = 0
Note, thats the value of b will be 0, as there is no "bx"
Now, solve:
Plug in values
Simplify the radical (Discriminant)
Pull out perfect squares
Reduce factors
The solutions are 
Answer:
450
Step-by-step explanation:
you divide 90 by 20 and times in by 100
The answer is B.
You need to subtract 15% each year from the value of the car.
Answer: 65200
7 - 1 = 6 x 11700 = 70200 - 5000 = 65200
Answer:16b square root of 5 -8
Step-by-step explanation: