15/2 should be the answer.
Answer:
2.5
Step-by-step explanation:



Hope this helped! :)
The slope would be -1 because of the x
First you want to change the 4% to a fraction so 4/100. Then you have to figure out if 4/100 or 1/10 is larger. 4/100 reduces to 1/25. So the 1/10 or 1 in 10 is more often then the 1/25 or 1 in 25.