In one month she completed 5 paintings, so in 6 month she completed 6 * 5 = 30 paintings.
38 - 30 = 8 - that's how many paintings she's still about to complete.
If she can do 5 paintings in one month, she'll do 8 paintings in 1 3/5 months. If we assume that month has 30 days, she'll probalby need one month and 18 days to do it (because 3/5 from 30 is 18).
The 1st expression is the only one that reproduces the terms being added.
<span>, the answer is (1/5)x^-3, i think</span>
