Answer:
12y-24
Step-by-step explanation:
-4(6-3y)
-24+12y
Answer:
6
Step-by-step explanation:
Answer:
<h2>m=3,b=-11 y=3x -11</h2>
Step-by-step explanation:
so sorry i answered late, hopefully people with
this question sooner or later,hope it helps!!
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.
It would be: x² = 5² + 12²
x² = 25 + 144
x = √169
x = 13
In short, Your Answer would be Option D
Hope this helps!