Answer:
<h2>
<em>C. 28</em></h2>
Step-by-step explanation:
The lowest common multiple of 2 and 7 is 14, so 14 days will pass before he does both chores again.
If the question is, "What is the scale factor." That would be a scale (factor) of 2.
If the top of the fraction is less than the bottom, the fraction is less than one. However, Federico has raised 11/10 of what he needs and the top is bigger than the bottom so he’s raised the most money.
It takes the son one and half hours to clean the house. To find this you need the equations F+S=2 and F+1=S. (F=father and S=son) You take the F+1 and substitute it in for S in F+S to get F+(F+1)=2. Then you combined like factors, 2F+1=2, and simplify to get F=.5hr. After this you plug .5 in to F+1=S to get (.5)+1=S, meaning it takes the son 1.5 hour to clean the house.
