You are given the variables s and t. We need to make a table to create points in the form (s, t).
Steps:
1. Pick some t-values.
2. Evaluate for s. This will give you several points in the form (s, t).
3. Plot each point on the st-plane.
4. Lastly, let t = 7 in the given function. Evaluate for s.
5. Use the complete graph to ESTIMATE the sales 7 weeks after release.