Answer: 20 + x
Why you ask? Well its just plain logic if you read it thoroughly
Answer: They would choose $300.00 for 10 people
Step-by-step explanation:
It would be cheaper
The time needed at 2 meters per second for both rounds would be 100/2 s or 50 seconds. For the first lane he already used 50/1.5 -> 33.33 seconds, so he would need to cover the other 50 meters in exactly 16.67. 50m divided by the 16.67 seconds he has left means he has to swim at a speed of 3 meters per second.
Answer:
if she got 4 questions wrong it would be 12
her score if she got x questions wrong it would be 20-2x