200-50= 150
So you need to get 150 dollars in a month. If you get 20 dollars a week, then 150/20 will give you 7.5. So it will take you 7.5 weeks to get 150 dollars
Let's say Bailey takes "b" days to paint it.
and Andrew takes "a" days to paint the same house.
now, Andrew is 6 times faster than Bailey, therefore, if Andrew takes "a" days to do it, Bailey takes then "6a" days, or b = 6a.
now, the year they worked together, they finished it in 7 days.
so, after 1 day then, they have only done 1/7 of the whole work.
and Andrew for one day, has done 1/a of the house, whilst Bailey has done 1/b of the house or 1/(6a).

Answer:
625
Step-by-step explanation:
Convert 15300 to a percent,
We can convert it to it's lowest fraction,
120, and to find the percent just multiply it by 5 on top and bottom,
120 ×5×5
which equals, 5100
Then take the percent as a decimal, 0.5 and multiply it by 12500,
12500×0.5 which would give you: 625