Data was collected in 50 cities across the United Kingdom on the percentage of 25 - 30 year olds in the workforce.
. Data was collected in 2015 and then again in 2019.
• Gains or losses in percent employment were measured and then conclusions were made.
What kind of design was this?
I. A sample survey
II. An observational study
HI. An experimental design
Il Only
I and II Only
O I Only
O III only
Mi

Part A: Geometric Sequence

Part B:

Part C: a₈ = 512

Step-by-step explanation:

When we find the common ratio between the y-values (x-values are n inputs), we should see that we get r = 2. That means we have a geometric sequence.

Because we have a geometric sequence, our recursive formula is: . Simply plug in our known variables:

Now we need to find what y is when x = 8, so (I used explicit formula):

a₈ = 512