To find the total cost for the photographer based on the number of poses, we can use the formula:
Total Cost = Sitting Fee + (Cost per Pose × Number of Poses)
Given:
- Sitting Fee = $15
- Cost per Pose = $3
Now, let's calculate the total cost for 1 to 5 poses:
-
For 1 pose: Total Cost = $15 + ($3 × 1) = $15 + $3 = $18
-
For 2 poses: Total Cost = $15 + ($3 × 2) = $15 + $6 = $21
-
For 3 poses: Total Cost = $15 + ($3 × 3) = $15 + $9 = $24
-
For 4 poses: Total Cost = $15 + ($3 × 4) = $15 + $12 = $27
-
For 5 poses: Total Cost = $15 + ($3 × 5) = $15 + $15 = $30
So the costs for 1 to 5 poses are $18, $21, $24, $27, and $30.
Therefore, the range of total costs is: C. range = {18, 21, 24, 27, 30}
The correct answer is C.