Acids tend to have a pH of below 7 (which is neutral).
The only option that makes the pH statement above true is A, 6.
So the answer is with no doubt, A. 6
In my opinion the answer is D
Jamal is 2 miles away from his home.
Option B.
<h3><u>Explanation:</u></h3>
The initial distance of Jamal from his home is 8 miles. He needs to return home from his trip.
The speed that Jamal kept was constant for 30minutes and he drove at a speed for 12 miles per hour.
Speed of Jamal = 12 mph.
Time of travel = 30minutes =0.5 hours.
So distance traveled by Jamal =
miles. = 6miles.
Initial distance of Jamal = 8 miles.
So final distance =
miles = 2miles.
So Jamal is 2 miles away from his home.