The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)
Answer:
A. 4.2 times
Step-by-step explanation:
Chlorine level of the pool as adjusted by Paula = 6.3 parts per million
Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.
Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level
= 
The current Chlorine level is 4.2 times the ideal Chlorine level.
Answer:
3(x-1)x(3x+1)
Step-by-step explanation:
Answer: A,E
Explanation: i just sacrificed my answer to find the right answer
Answer:
B) 1/2
Step-by-step explanation: