Answer:

Step-by-step explanation:
Given

Required
Write a formula
The above sequence shows a geometric sequence because:
-- common ratio
The equation is determined using:

Where

Substitute values for a and r

Apply law of indices:





<em>The above represents the explicit formula</em>
Answer:
x<2
Step-by-step explanation:
Divide 24 by 12 to get 2.
Danielle had a percent error of 13.6 (farthest)
Iris had a percent error of 6.8
HB has a percent error of -2.3 (closest)
So the order is HB, Iris, and then Danielle
Answer:
200
Step-by-step explanation:
The price is 100%-20%=80% of the original.
So, 250*0.8 = 200
The answer for this question would be 10