Mr. Coleman is mapping the boundaries of a zoo on a coordinate grid. The zoo’s headquarters are located at the origin. The equations shown below represent two boundaries of the zoo.

y = −2x – 5
−2x + 4y = 12

The zoo’s entrance is located at the intersection of these two boundaries. Which coordinate grid correctly shows the two boundaries and the zoo’s entrance?

To find the percent of something, put the percent in decimal form and multiply.

125% = 125/100 = 1.25

Now here's the problem with the wording: He spent 125% of the previous time doing his homework, but only 25% more time!

(If you wanted to find out how much MORE time, subtract 25 from 20 and you'll see that he did 5 more hours this week. 20 times 0.25 = 5. (0.25 = 25%))
So no, Evan did not spent 125% more time doing his homework this week.