You should use the Mean or avg as the central tendency. why? because you want to find the avg of the 6 scores.
89 +81+85+ 82+ 89+ 89 = 515
515/ 6 = 85.833
or 86 when rounded to the nearest whole number
A deposit (in this case) is a portion of the TV paid in advance - 20% of the total cost. That means that the 96$ makes up the remaining 80% of the total cost, which I'll represent as <em>x</em>. From here, we can set up an equation to find the total cost x, since we have a relation to form it on - <em>the fact that 80% of x is equal to 96$.</em>


The total cost of the TV is 120 dollars.
Answer:
x>15
Step-by-step explanation:
Given the inequality: 2x + 10 < 4x - 20
Collect like terms
2x-4x<-20-10
-2x<-30
x > -30/-2
x>15
Hence the solution is x>15