Answer: A) y = 6x +3
Step-by-step explanation:
Let x represent the number of hours. $6 per hour can now be written as 6x.
Now, we must account for the $3 flat, fee and add it to 6x, getting 6x + 3
The mean of n numbers is the sum of the numbers divided by n.
You have a mean score of 84 after taking 5 tests. Let x be the sum of scores.

You scored a total of 420 points on five tests.
You need to have a mean score of 85 after taking 6 tests. Let y be the score you need to obtain. Your total score on 6 tests is 420+y.

You need to score 90 points on the sixth test.
Counting by tens is faster than counting by ones because you skip more numbers in between 10 and the next number than just counting by ones
The answer to this question is 7. To solve this, start by subtracting 8 from 25.5, and you get 17.5. This is how much she has spent on rides. Now divide 17.5 by 2.5, and you get 7. I hope this helps!