Answer:
5
Step-by-step explanation:
because i know
It's impossible for 2 factors of 12 to add up to 16. So there would be no answer to that.
0.003 is 1/10 of 0.03.
Just multiply the 0.003 by 10 and you'll get the answer.
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.
