Answer:
6 weeks
Step-by-step explanation:
Set up a proportion where x is the amount of time with 12 pupils:
= 
Cross multiply and solve for x:
4x = 24
x = 6
So, it will take 12 pupils 6 weeks to complete the job.
Answer:
B
Step-by-step explanation:
The correct answer is B
Answer:
Hello !
The solutions are: -8 , -4 , 6
Hope this helps !