He needs 160 5-star reviews in a role. We can write a function to solve this problem. His current total stars is 4.4*160=704. Suppose he needs x more 5-star reviews, then his total stars will be 704+5x. 160+x is the new number of reviews, and the new average will be 4.7, so 4.7*(160+x)=704+5x. The solution is 160. Besides, if you want to get the answer really fast, you can see that 4.7 is right in the middle of 4.4 and 5, so you can immediately guess that the number of new 5-star reviews should be equal to the number of current reviews.
2/3 is just .6666666666 and the 6 goes on forever
Line point L would be the midpoint of question 3.
Answer: $3300 profit
Step-by-step explanation
P = 40(h) - expenses
h = 200
Expenses = 4000,325,375
P = 40(200) - (4000+325+375)
P = 8000 - 4700
P = 3300
