There were 270*100/30 = 900 total finishers. 90% completed the marathon, so 900*100/90 = 1000 began the marathon. 1,000 runners total.
technician b is correct because potentiometers dont need a power supply to work
Answer: The Fed can influence the money supply by modifying reserve requirements, which generally refers to the amount of funds banks must hold against deposits in bank accounts. By lowering the reserve requirements, banks are able to loan more money, which increases the overall supply of money in the economy.
Explanation:pls like
The statement about ADHD that is true is: "ADHD has no clear physical symptoms that can be detected via an x-ray or blood test"
<h3>What is ADHD?</h3>
This is an acronym for a kind of mental disorder that is called Attention Deficit Hyperactivity Disorder (ADHD).
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental psychiatric condition.
It is characterized by challenges concentration, excessive activity, or difficulty restraining behavior that is inappropriate for a man's age.
Learn more about ADHD at;
brainly.com/question/10002219
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