Solve n-0.5n: Finding the 8th Element in a Linear Sequence

A sequence has a term-to-term rule of $n-0.5n$.

What is the 8th element of the sequence?

To find the 8th element of this sequence, we must apply the given term-to-term rule:

The rule provided is $n - 0.5n$. Simplifying this, we obtain:

$n - 0.5n = 0.5n$

Thus, for the 8th term, substitute $n = 8$ into the simplified rule:

$0.5 \times 8 = 4$

Therefore, the 8th element of the sequence is $4$.

Thus, the correct answer is choice 1: $4$.