Step-by-step explanation:
The slope-intercept form of an equation of a line:

- slope
- y-intercept

19) and 20) you have in other your question.
Answer:
100/40=2.5 or 250%
250% in production rate should be your answer.
Change the mixed numbers into simple fractions:
-9/4-(-67/8)
Find the common denominator and subtract:

So your answer is H
Hope that helps