A, divide 2.5 by 5 and you get 0.5, multiply that by 9 and you get 4.5. A is the answer
No because 4 square equals 2 square and since 3 isn't a perfect number, it would be 2 square times 3 square, which equals 6 square.
Answer:

Step-by-step explanation:
To solve the equation, isolate x. Whatever you do to isolate x one on side, you must do to the other.
1) Multiply both sides by 9 to get rid of the fractions.

2) Distribute the 3 to 8x and 15. Then, combine like terms.
3) Move the 66 to the other side, subtracting 18 by 66, then divide each side by 20 to finally isolate x.

Thus,
.
15.6 kilometers rounded down because it is not safe to go above what has been approved