Answer: C. 

Step-by-step explanation:
If 't' represents the number of hours Joanne tutors and 'r' represents the number of hours she works as a receptionist.
Then the total hours she can work=t+r
Since she can work up to 25 hours.
Thus 
If she earns $25 per hour by tuition and $ 12 per hour by working as a receptionist .
Then her total earning =$
Since she must earn $200.
Then
.
Therefore, the required system of inequality will be


0.52 because 52/100 is better than 52/1000 and 52/10000
Answer:
Step-by-step explanation:
Bc u dont write ur work down. If u actually take the steps to do the question it wont be that bad