I got 16 but not 100% sure if it’s right
Sorry if it’s wrong, I tried my best
Slope = 4/1 = 4
hope it helps
Just start plugging in numbers for x and y and you will get a line
Your answer is 25% because a change from 16 to 20 represents a positive change (increase) of 25%
If I am not mistaken, the slope would be -14.