What do you need help with?
Positive 2 is your slope, (rise over run) if you have to graph it and -1 is your y-intercept
9 x 400 + 9 x 70 + 9 x 5. (9 x 470) + (9 x 5).
Answer:
80%
Step-by-step explanation:
Please consider the complete question:
Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wednesday. By how much did she increase the time she practiced each day?
We will use percent change formula to solve our given problem.

Upon substituting our given values, we will get:



Therefore, Micah had increased the time by 80%.
I think that it's just the 5th one... if there are multiple answers I would also add the 4th one.
Hope this helped broski