Answer:
12 hours
Step-by-step explanation:
Let Theo's siste can paint a fence in x times
Given.
Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours.

Apply cross multiplication

Theo’s sister to paint the fence in 12 hours.
Answer:
circle= 5, triangle= 3
Step-by-step explanation:
Please see attached picture for full solution.
The answer is 9, to find it just do inverse and in this case that is 12-3 and u should always get the answer
The scale is that 3 the force is going on a colicky of 350
Answer:
b
Step-by-step explanation: